Email authentication is a process that enables organizations to maintain the credibility of the email's source when they send emails from Zoho CRM using their own domain. To authenticate the emails, they must verify the following authentication standards:
- Domain Verification
- DKIM (Domain Keys Identified Mail)
- SPF (Sender Policy Framework)
After completing the authentication process in Zoho CRM, the next step is to add the automatically generated SPF and DKIM records to the domain manager.
Read more about authenticating emails.
DKIM authentication
Domain Keys or DKIM is an email authentication system created by Yahoo! to verify the authenticity of an email sender and protect the message from being altered during transmission. It is based on the DomainKeys specification, which combines elements of Identified Internet Mail to create a more secure protocol known as Domain Keys Identified Mail (DKIM). This protocol allows the sender to digitally sign each email message with a cryptographic signature, which is then verified by the recipient's email server. This ensures that the message has not been tampered with or altered in any way. DKIM also helps to prevent spam and phishing attempts by verifying the sender's identity and domain.
SPF authentication
SPF, or Sender Policy Framework, is an email authentication protocol that allows domain owners to specify which servers are authorized to send emails on their behalf. It works by verifying the IP address of the sender against a list of authorized IP addresses, known as an SPF record, that is published in the Domain Name System (DNS). If the IP address of the sender is not on the list, then the email is rejected. This helps to protect against email spoofing and phishing attacks, as it ensures that only authorized email servers can send emails from a domain.
Configuring settings in your domain managers
Note:
If you are using Zoho CRM from the regions below, add the respective TXT value instead of "include:one.zoho.com".
- US v=spf1 include:one.zoho.com
- EU v=spf1 include:one.zoho.eu
- IN v=spf1 include:one.zoho.in
- AU v=spf1 include:one.zoho.com.au
- CN v=spf1 include:one.zoho.com.cn
- JP v=spf1 include:one.zoho.jp
GoDaddy
To add the SPF record for your domain:
- Log in to your GoDaddy account and navigate to the Domain Control Center.
- Select your domain to access the Domain Settings page.
- Under Additional Settings, select Manage DNS.
- Select Add under the records table.
- Under Type, select TXT.
- Enter the following information:
- Type: Select TXT as the type of record to be added.
- Host: Enter "@".
- TXT Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com ~all
- Click Save.
If you have an existing SPF TXT record,
- Locate the record you added and click Edit.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Save.
To add the DKIM record for your domain, follow these steps:
- Log in to your GoDaddy account and navigate to the Domain Control Center.
- Select your domain to access the Domain Settings page.
- Under Additional Settings, select Manage DNS.
- Select Add under the records table.
- Under Type, select TXT.
- Enter the following information:
- Type: Select TXT as the type of record to be added.
- Host: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example:"2232._domainkey")
- TXT Value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information.
- Click Save.
Click here to learn more about managing your DNS record resource in your GoDaddy account. Cloudflare
To add the SPF record for your domain, follow these steps:
- Log in to your Cloudflare account.
- Click the appropriate Cloudflare account for the domain where you will add records.
- Click the DNS app.
- Click Add record.
- Enter the following information:
- Type: TXT.
- Name: Enter "@".
- IPv4 address: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Save.
To add the DKIM record for your domain, follow these steps:
- Log in to your Cloudflare account.
- Click the appropriate Cloudflare account for the domain where you will add records
- Click the DNS app.
- Click Add record.
- Enter the following information:
- Type: TXT.
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- IPv4 address: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information.
- Click Save.
Click here to learn more about managing your DNS record resource in your GoDaddy account.
JostHost
To add the SPF record for your domain:
- Log in to your JustHost account.
- Go to the Domains menu at the top and click the Zone Editor sub menu.
- Select your domain from the drop-down.
- Click Add DNS Record at the top of the zone editor.
- Enter the following information:
- Name: Enter the domain name.
- TTL: Enter how long the server should take to cache the information.
- Type: TXT.
- TXT Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Add Record.
If you have an existing SPF TXT record,
- Select the domain you want to edit.
- Under Zone File Records, select the record to be edited and click Edit.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click ADD.
To add the DKIM record for your domain, follow these steps:
- Log in to your JustHost account.
- Go to the Domains menu at the top and click the Zone Editor sub menu.
- Select your domain from the drop-down.
- Click Add DNS Record at the top of the zone editor.
- Enter the following information:
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen.(Example: 2232._domainkey)
- TTL: Enter how long the server should take to cache the information.
- Type: TXT.
- TXT Value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- Click Add Record.
Click here to learn more about managing your DNS record resource in your JostHost account.
HostMonster
To add the SPF record for your domain:
- Log in to your HostMonster account.
- Go to the Domains menu at the top and click the Zone Editor sub menu.
- Select your domain from the drop-down.
- Click Add DNS Record at the top of the zone editor.
- Enter the following information:
- Name: Enter "@".
- TTL: Enter how long the server should take to cache the information.
- Type: TXT
- TXT Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Add Record.
If you have an existing SPF TXT record,
- Select the domain you want to edit.
- Under Zone File Records, select the record to be edited and click Edit.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click ADD.
To add a DKIM record for your domain, follow these steps:
- Log in to your HostMonster account.
- Go to the Domains menu at the top and click the Zone Editor sub menu.
- Select your domain from the drop-down.
- Click Add DNS Record at the top of the zone editor.
- Enter the following information:
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TTL: Enter how long the server should take to cache the information.
- Type: TXT.
- TXT Value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account
- Click Add Record.
Click here to learn more about managing your DNS record resource in your HostMonster account. Ipage
To add the SPF record for your domain:
- Log in to your Ipage account and go to the Domains tab in the dashboard.
- In the Card View, click Manage on the domain for which you are updating the SPF record.
- In the list view, click the Settings icon.
- Click DNS & Name servers in the left pane.
- Click DNS Records on the DNS & NAMESERVERS page.
- Click Add DNS Record to add a new SPF record.
- Enter the following information:
- Name: Enter "@".
- TTL: Enter how long the server should take to cache the information.
- Type: TXT
- TXT Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Add Record.
If you have an existing SPF TXT record:
- Select the domain you want to edit.
- Under Action, select Edit.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click ADD.
To add the DKIM record for your domain, follow these steps:
- Log in to your Ipage account and go to the Domains tab in the dashboard.
- In the card view, click Manage on the domain for which you are updating the SPF record.
- In the list view, click the Settings icon.
- Click DNS & Nameservers in the left pane.
- Click DNS Records on the DNS & Nameservers page.
- Click Add DNS Record to add a new SPF record.
- Enter the following information:
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TTL: Enter how long the server should take to cache the information.
- Type: TXT.
- TXT Value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM accounts.
- Click Add Record.
Click here to learn more about managing your DNS record resource in your Ipage account.
WordPress
To add the SPF record for your domain, follow these steps:
- Log in to your WordPress account.
- From the navigation toolbar, click My Site.
- Under the Manage section, click Domains.
- Click the domain for which you want to add the text record.
- Scroll down and click the Name Servers and DNS link.
- Click DNS Records to add new TXT records.
- Enter the following information:
- Type: Select TXT as the type of record to add.
- Name: Enter the domain name.
- Text: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Add New DNS Record.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your WordPress account.
- From the navigation toolbar, click My Site.
- Under the Manage section, click Domains.
- Click the domain for which you want to add the text record.
- Scroll down and click the Name Servers and DNS link.
- Click DNS Records to add new text records.
- Enter the following information:
- Type: Select TXT as the type of record to add.
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- Text: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- Click Add New DNS Record.
Wix
To add the SPF TXT record for your domain, follow these steps:
- Log in to your Wix account
- Navigate to the Domains page.
- Click the Show More icon next to the relevant domain and select Manage DNS Records.
- Click + Add Record in the TXT (Text) section.
- Enter the following information:
- Host Name: Enter "@".
- SPF Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information.
- Click Save.
In the Card View, click Manage on the domain for which you are updating the SPF record.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
If you have an existing SPF TXT record:
- Under your domain name, select Advanced and click Edit DNS.
- To the existing SPF Value, add "include:one.zoho.com" after "v=spf1".
Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all
- Click Save DNS to confirm.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your Wix account.
- Navigate to the Domains page.
- Click the Show More icon next to the relevant domain and select Manage DNS records.
- Scroll down to the TXT (Text) section and click Add Record.
- Enter the following information:
- Host Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TXT Value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information.
- Click Save.
Click here to learn more about managing your DNS record resource in your Wix account. eNom
To add the SPF TXT record for your domain, follow these steps:
- Log in to your eNom account.
- From the navigation toolbar, choose Domains and click My Domains.
- Click Add SRV or SPF record.
- Choose Add a SPF Record from the drop-down list.
- Enter the following information:
- Host Name: Enter "@".
- TXT value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Save.
If you have an existing SPF TXT record
- Locate the record you added and click Edit SPF Text.
- To the existing SPF Text String, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Save to confirm.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your eNom account.
- From the navigation toolbar, choose Domains and click My Domains.
- Click Add TXT record.
- Choose Add DKIM Record from the drop-down list.
- Enter the following information:
- Host Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TXT value: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information.
- Click Save.
Click here to learn more about managing your DNS record resource in your eNom account.
Squarespace
To add the SPF TXT record for your domain, follow these steps:
- Log in to your Squarespace account.
- Open Advanced DNS Settings for the domain.
- Scroll down to Custom Records.
- In the Record field of a blank row, select TXT from the drop-down.
- Enter "@" in the Host field.
- Leave the Priority field blank.
- Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- Click Add to save the SPF record.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
If you have an existing SPF TXT record,
- Locate the record you added.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click ADD and then click Save to confirm.
Adding the DKIM record for your domain
- To add the DKIM record for your domain, follow these steps:
- Log in to your Squarespace account.
- Open Advanced DNS Settings for the domain.
- Scroll down to Custom Records.
- In the Record field of a blank row, select TXT from the drop-down.
- In the Host field, enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- Leave the Priority field blank.
- Copy the DKIM TXT record displayed in the SPF/DKIM Setup screen in your Zoho CRM account. Paste it in the Data field.
- Click Add to save the DKIM record.
Click here to learn more about managing your DNS record resource in your Squarespace account.
Eurodns
To add the SPF TXT record for your domain, follow these steps:
- Log in to your Eurodns account.
- From the navigation toolbar, go to Domain Names > Active.
- Locate the domain you want to manage and click Manage.
- Under the DNS Zone section, click Manage Zone.
- Click the New Record button at the bottom of the page.
- Enter the following details:
- Type: Select TXT(Text).
- TXT: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- Host: Enter "@".
- TTL: Enter how long the server should take to cache the information.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Save Record.
- Finally, click Save Zone to confirm.
If you have an existing SPF TXT record:
- Select the domain and click Manage.
- Under DNS Zone, click Manage Zone.
- Locate the record and click the Edit icon.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Save Record and then click Save Zone to confirm.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your Eurodns account.
- From the navigation toolbar, choose Domain Names.
- Locate the domain you want to manage and click Manage.
- Under the DNS Zone section, click Manage Zone.
- Click the New Record button at the bottom of the page.
- Enter the following details:
- Type: Select TXT(Text)
- TXT: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- Host: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TTL: Enter how long the server should take to cache the information.
- Click Save Record.
- Finally, click Save Zone to confirm.
Click here to learn more about managing your DNS record resource in your Eurodns account.
Register
To add the SPF TXT record for your domain, follow these steps:
- Log in to your Register account.
- Click Manage Account.
- Under Account Dashboard, choose Domains and click Manage.
- Locate your domain and click the Manage link.
- Under Advanced Technical Settings, click the Edit TXT Records link.
- Enter the following information:
- Host: Enter @
- TXT Record: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen
- Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click the Continue button to confirm.
If you have an existing SPF TXT record:
- Select the domain and click the Manage link.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Continue to confirm.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your Register account.
- Click Manage Account.
- Under Account Dashboard, choose Domains and click Manage.
- Locate your domain and click the Manage link.
- Under Advanced Technical Settings, click the Edit TXT Records link.
- Enter the following information:
- Host: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TXT Record: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- Click the Continue button.
Network Solutions
To add the SPF TXT record for your domain, follow these steps:
- Log in to your Network Solutions account.
- Click Manage Account on the top-right corner of the page.
- Under My Domain Names, click the Edit DNS link.
- From the list of domains displayed, select the domain for which you want to add the record and click the Edit DNS button.
- Under the Advanced DNS Manager section, click the Manage Advanced DNS Records button.
- Scroll down.
- Under the Text (Text Records) section, click the Edit TXT Records button.
- Enter the following information:
- Host: Enter the domain name.
- TTL: Enter how long the server should take to cache the information.
- Text: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Continue to confirm.
- Finally, click Save Changes.
If you have an existing SPF TXT record:
- Select the domain and click the Edit DNS button.
- Under the Text(Text Record) section, click the Edit TXT Records button.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Continue to confirm and click Save Changes.
To add a DKIM TXT record for your domain, follow these steps:
- Log in to your Network Solutions account.
- Click Manage Account on the top-right corner of the page.
- Under My Domain Names, click the Edit DNS link.
- From the list of domains displayed, select the domain for which you want to add the record and click the Edit DNS button.
- Under the Advanced DNS Manager section, click the Manage Advanced DNS Records button.
- Scroll down. Under the Text (Text Records) section, click the Edit TXT Records button.
- Enter the following information:
- Host: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- TTL: Enter how long the server should take to cache the information.
- Text: Paste the DKIM TXT record displayed in the SPF/DKIM Setup screen of your Zoho CRM account.
- Click Continue to confirm.
- Finally, click Save Changes.
Bluehost
To add the SPF TXT record for your domain, follow these steps:
- Log in to your BlueHost account.
- Go to the Domains menu at the top and click the Zone Editor submenu.
- Select your domain name from the drop-down.
- To add a new SPF record, enter this information under Add DNS Record at the top of the Zone Editor:
- Type: TXT
- Name: Enter the domain name
- TXT: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen
- TTL: Enter how long the server should take to cache the information
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click Add Record.
If you have an existing SPF TXT record:
- Locate the record you added and click the Modify Record button.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Modify Record.
To add the DKIM TXT record for your domain, follow these steps:
- Log in to your BlueHost account.
- Go to the Domains menu at the top and click the Zone Editor submenu.
- Select your domain name from the drop-down.
- To add a new DKIM record, enter this information under Add DNS Record at the top of the Zone Editor:
- Type: TXT.
- Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example:2232._domainkey)
- TXT Value: Paste the DKIM TXT record displayed on the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information
- Click Add Record.
Click here to learn more about managing your DNS record resource in your BlueHost account. Namecheap
To add the SPF record for your domain, follow these steps:
- Log in to your Namecheap account.
- Click Domain List on the left pane.
- Click the Manage button next to your domain.
- Under the Advanced DNS tab, click the Add New Record button.
- Enter the SPF and DKIM TXT records provided by Zoho CRM.
- Type: Select TXT as the type of record you want to add.
- Host: Enter"@".
- Value: Paste the SPF TXT record displayed on the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information.
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com~ all
- Click the Save all changes button.
If you have an existing SPF TXT record:
- Locate the record you added and click the Edit icon.
- To the existing record details, add "include:one.zoho.com" after "v=spf1". (Example: v=spf1 include:one.zoho.com include:spf.zylker.com ~all)
- Click Update.
Click here to learn more about managing your DNS record resource in your Namecheap account.
HostGator
To add the SPF record for your domain in HostGator, follow these steps:
- Log in to your HostGator account.
- Navigate to the control panel and search for your domain name.
- From the navigation toolbar, choose Manage Orders and click List/Search Orders.
- Click on your domain from the list displayed.
- Under the DNS Management section, click the Manage DNS link.
- First click the TXT Records button to add the SPF record and then click the Add TXT Record button below it.
- Enter the following information:
- Host Name: Enter "@"
- Value: Paste the SPF TXT record displayed in the SPF/DKIM Setup screen.
- TTL: Enter how long the server should take to cache the information. The ideal TTL is 86400 (1 day). It can not be set to less than 14400 (4 hours).
Example: v=spf1 include:one.zoho.com include:sender.zohobooks.com ~all
- Click Add Record.
If you have an existing SPF TXT record:
- Locate the record you added and click the Modify Record button.
- To the existing record details, add your sender domain after "v=spf1". (Example: include:one.zoho.com)
- Click Modify Record.
To add the DKIM record for your domain in HostGator, follow these steps:
- Log in to your HostGator account.
- From the Navigation toolbar, choose Manage Orders and click List/Search Orders.
- Click on your domain from the list displayed.
- Under the DNS Management section, click Manage DNS.
- First click the TXT Records button to add the DKIM TXT record and then click the Add TXT Record button displayed below it.
- Enter the following information:
- Host Name: Enter the DKIM hostname displayed in the SPF/DKIM Setup screen. (Example: 2232._domainkey)
- Value: Paste the DKIM TXT record displayed on the SPF/DKIM Setup screen of your Zoho CRM account.
- TTL: Enter how long the server should take to cache the information. The ideal TTL is 86400 (1 day). It can't be set to less than 14400 (4 hours).
- Click Add Record.
Click here to learn more about managing your DNS record resource in your HostGator account. Tips:
- Having multiple SPF records can interrupt the SPF check which may cause validation failure. As a result, the emails may end up as Spam in the recipient servers. We recommend not to add a new record if you already have one.
- Sometimes, DNS providers will automatically add your domain name to the end of your DNS record's attribute name. For instance, if you set up a record with the attribute name _domainkey.yourdomain.com, it might be changed to _domainkey.yourdomain.com.yourdomain.com due to this automatic addition. To prevent this unintended repetition, simply place a dot at the end of the domain name when entering the DNS record. This dot indicates to the DNS provider not to add the domain name again to the record.
For example, 1522406527143_domainkey.newgensaas.com, it might be changed to 1522406527143_domainkey.newgensaas.com.newgensaas.com