What does this page cover
Learn how to configure and manage outgoing email channels in Zoho Creator. Outgoing email channels determine the email service used to deliver emails in Creator applications. You can authenticate your domain in Creator's built-in email channel to ensure emails are trusted and not marked as spam, also configure third-party channels such as ZeptoMail, Microsoft Outlook, Gmail, and Custom SMTP for greater flexibility and seamless integration with your existing email infrastructure.
Availability
- The built-in email channel is available in all plans, including the Free plan. Domain authentication is available in all paid plans.
- ZeptoMail, Microsoft Outlook, Gmail, and Custom SMTP channels can be configured in all paid plans.
- Only the super admin can configure and manage email channels.
1. Configuring Outgoing Email Channels
Choose from multiple outgoing email channels based on your setup requirements.
- Built-in Email: This is the default email channel with no setup required. Send emails directly from Creator using the platform’s built-in service.
- ZeptoMail: A transactional email service that can be integrated with Creator using basic credentials.
- Third party Email (Microsoft Outlook and Gmail): Requires a Client ID and Client Secret from your application credentials. These channels use OAuth 2.0 for authorization.
- Custom SMTP: Connects to any email service provider or your own mail server using the SMTP protocol.
Multiple email channels can be configured, but only one can be active at a time through which emails will be routed.
- Built-in Email
- ZeptoMail
- Microsoft Outlook
- Gmail
- Custom SMTP
2.1 Built-in Email
Zoho Creator's active email channel by default, ready to use without any additional setup. Organizations can configure custom authentication to maintain domain identity and brand visibility for their end users.
Note: If an active email channel configuration is deleted, the built-in email channel automatically becomes the active outgoing email channel, preventing disruptions to email delivery.
Once an
email address is added and verified under the
Sender Emails tab, its associated domain is automatically listed under the
Built-in Email channel with its
Verification Status marked as
Completed. You can then authenticate these domains to strengthen your brand identity and build trust with recipient servers, ensuring emails sent from your domain are recognized as legitimate and not flagged as spam.
Authenticating a verified domain in Zoho Creator
Note: Custom domain authentication is recommended, as it ensures emails are sent from your own domain address rather than a Zoho Creator shared address, and reduces the likelihood of emails being flagged as spam by recipient servers. If not configured, emails are routed through Zoho Creator's shared domain.
Learn more
To authenticate a verified domain:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Manage Domains on Built-in Email card inside the Outgoing Email Channels, the tab you land on by default.

- Click Validate on the required domain's detail card.

- Locate the SPF and DKIM records in the Domain Authentication pop-up and click Copy next to each record. Paste the values in your domain provider’s DNS settings and ensure the records are added exactly in the format specified in the popup. This makes sure emails are sent from authorized servers and approved by the domain owner.

- To configure SPF, publish it as a TXT record in your DNS provider such as your domain registrar or DNS manager.
- Click Validate in Zoho Creator after adding the SPF and DKIM records in your domain provider’s DNS settings. Once the DNS configurations are verified:
- The domain's Authentication Status will be updated to Completed.
- The domain's Status will be set to Active.
Note: When working with DNS records, keep the following in mind:
- SPF (Sender Policy Framework): SPF is an email authentication method that helps prevent emails from being rejected or marked as spam. SPF records must be added in the following format:
- For single SPF records, paste: v=spf1 include:usermail.zohocreator.com ~all
- For multiple SPF records, update the SPF record with: include:usermail.zohocreator.com instead of creating a new entry.
- DKIM (Domain Keys Identified Mail): DKIM is an email authentication method that uses A, MX, TXT, or CNAME record with public and private keys to verify emails.
- If DKIM is configured, the domain associated with each email is validated.
- If the DKIM validation fails, the email is either quarantined or rejected, based on your domain’s DMARC policy.
2.2. ZeptoMail configuration
ZeptoMail can be configured to send transactional emails through Zoho's dedicated email delivery service. It provides delivery monitoring, email activity tracking, and additional controls for managing high-volume email communication.
To configure ZeptoMail as an email channel:
- Click Operations in the left pane, select Email Management under APPLICATIONS.
Alternatively, you can also head over to the System Integration present under Operations directly and select ZeptoMail.

- Click Configure under ZeptoMail to initiate the integration.

- Creator verifies whether the email address of the super admin is associated with a ZeptoMail account. Based on the verification result, if the email address is:
- Not associated with a ZeptoMail account, click I understand, Create to create a new ZeptoMail account and associate it with your Creator account.

- Associated with a ZeptoMail account, click I understand, Associate to link your existing email address from a ZeptoMail account to your Creator account.

- Review the mail agent details for your ZeptoMail account and click Continue. In ZeptoMail, a mail agent is used to organize and manage email sending configurations.

- Note: During the integration process, a mail agent named Creator Default is automatically created and set as the default mail agent. You can change the default mail agent later from the ZeptoMail settings in Creator.
- Add and verify all domains configured in your Built-In Email channel in your ZeptoMail account. Sender emails whose domain is not authenticated in ZeptoMail will be unable to send emails after the switch. Once done, click Proceed.

- Click Finish at the bottom of the page to save the configuration and receive ZeptoMail credits based on your Creator plan on a monthly basis. Track your email credits under Subscription in ZeptoMail, which determine your email sending limit for the ZeptoMail channel.

Once the association is completed, you can view the analytics by clicking the View Analytics button in the page.
Activating the ZeptoMail channel automatically switches your account to the credit-based email system. Based on your existing price plans in Creator, the following credits will be made available:
- Standard plan: 1 credit per 5 users, with a maximum of 5 credits.
- Professional plan: 1 credit per 3 users, with a maximum of 10 credits.
- Enterprise plan: 1 credit per 2 users, with a maximum of 15 credits.
To send more than 100 emails per day from Creator using the ZeptoMail channel, complete the KYC process in your ZeptoMail account.
DMARC and sender verification
DMARC is an email authentication protocol that works along with
SPF & DKIM to help protect your domain from unauthorized email usage and spoofing.
If DMARC is enabled for a sender domain, the sender email addresses associated with that domain will be imported into ZeptoMail from Creator in an unverified state during the integration process. To use those email addresses for sending emails, you must first
verify the domain in ZeptoMail. The domains that were previously verified in Creator will become invalid after association with ZeptoMail and must be added and verified again in ZeptoMail.
Sender email addresses that were previously verified while DMARC was disabled will also be marked as unverified after import in Creator during the integration process.
After configuration, admins can perform the following additional actions from the Zeptomail interface:
- Email tracking: Enable email tracking to monitor open rates, click-through rates, and other recipient activities for your emails.
- Processed emails: Access logs of processed emails to track and monitor their delivery status and other relevant information.
- Webhooks: Utilize webhooks to receive real-time notifications for your email activities.
- Bounce addresses: Set up custom bounce addresses to handle undelivered emails more effectively.
Dissociate ZeptoMail
To dissociate ZeptoMail:
- In the ZeptoMail page, click on the Click here link to dissociate the existing ZeptoMail integration with your Creator account.

- Click the Yes, Dissociate button in the popup that appears. If you wish to enable it back, you can follow the steps under steps to enable ZeptoMail.
- For old users, when dissociating the following message will be shown-

- For new users, the following message will be shown-

Note: Once you dissociate your Creator account from ZeptoMail,
- all the emails will be reverted back to daily limits based on your Creator account's subscription plan.
- tracking emails, bounce address, and logs of emails will not be available anymore.
- all the domains that were verified earlier will have to be re-verified again.
2.3 Microsoft Outlook configuration
You can use Microsoft Outlook channel to route emails through Microsoft’s email service.
To configure Microsoft Outlook email channel:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Configure on Microsoft Outlook card within the Outgoing Email Channels, the tab you land on by default.

- Copy the Callback URL from Creator and paste it as a Redirect URL in the Microsoft Azure portal when registering your application.

- Provide the Client ID and Client Secret details, generated while registering your application in the Microsoft Azure portal under Identity > Applications > App registrations.

- Click Save & Authorize in Creator.
- Enter the Username, which is the email address used to sign in to your Microsoft Outlook account.

- Click Authorize. You will be redirected to a new tab to log in to your account in order to complete the authorization. Once authorized, the channel will be saved. Learn how to activate this channel to route outgoing emails through it.
Note: Sender email addresses added in this channel must be configured as alias addresses in the connected Outlook account before they can be used to send emails. Learn how to add the sender email address as an alias in
Microsoft Outlook.
2.4 Gmail configuration
You can use Gmail channel to route emails through Google's email service.
To configure Gmail email channel:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Configure under Gmail card under the Outgoing Email Channels, the tab you land on by default.

- Copy the Callback URL from Creator and paste it under Redirect URLs in Google cloud console during the registration process.

- Provide the Client ID and Client Secret details, generated while creating OAuth credentials in the Google Cloud Console.

- Click Save and Authorize in Creator.
- Enter the Username, which is the email address used to sign in to your Gmail account.

- Click Authorize. You will be redirected to a new tab to log in to your account in order to complete the authorization. Once authorized, the channel will be saved. Learn how to activate this channel to route outgoing emails through it.
Note: Sender email addresses added in this channel must be configured as alias addresses in the connected Outlook account before they can be used to send emails. Learn how to add the sender email address as an alias in Gmail.
2.5 Custom SMTP Configuration
A Custom SMTP server (Simple Mail Transfer Protocol) allows you to send emails through any third-party email server. You can choose this option when you need to use a specific email provider that aligns with your business requirements.
To configure a Custom SMTP server:
- Navigate to Operations in the left pane and select Email Management under APPLICATIONS.

- Click Configure under Custom SMTP card under the Outgoing Email Channels, the tab you land on by default.

- Provide the Hostname and Port Details, which can be obtained from your email server.
- Select the security protocol configured for or supported by your SMTP from the dropdown: SSL, TLS, or None.

- Choose the required authentication type: None, Basic, OAuth 2.
Proceed based on the authentication type: - If None is selected:
- Click Save to complete the configuration.
- Note: If None is the authentication type, make sure your SMTP server supports unauthenticated email submission. Otherwise, email delivery may fail.
- If Basic authentication is selected:
- Click Save to save configuration till now.
- Provide the Username and Password used to authenticate your SMTP server, the username is the email address associated with your account.

- Click Authorize and complete authorization.
- If OAuth 2 is selected:
- Provide the Client ID and Client Secret, which are obtained by registering with the email server.

- Provide the Authentication URL, Token URL, Refresh Token URL, and Revoke Token URL, obtained from your provider.
- Provide the required scopes, which define the level of access your application needs from the email server.
- Select a delimiter between Space, Comma and Plus to define how multiple scopes are separated.
- Provide the Expiry Time, specified by your provider.
- Click Save & Authorize to complete and save the configuration.
3. Managing Email Channels
3.1 Activate channel
Built-in Email is activated by default and only one email channel can remain active at a time. When a new channel is activated, the previously active channel automatically becomes inactive.
To activate any other email channel:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Manage Domains for the Built in Email channel or Configure for other channels under the Outgoing Email Channels, the tab you land on by default.
- Click the ellipsis icon located in the top-right corner and select Activate.

Once the channel is activated, all ongoing emails will be redirected through the newly activated channel moving forward.
3.2 Edit Channels
Editing the configuration is available for third-party channels (Gmail, Outlook, and Custom SMTP). Editing an active channel's configuration may cause temporary disruptions to email delivery; ensure the process is completed promptly to minimize downtime.
To edit a channel configuration:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Manage Domains for the Built in Email channel or Configure for other channels under the Outgoing Email Channels, the tab you land on by default.
- Select Edit in the top-right corner. Update the required details and click Save.

3.3 Reauthorize Channels
Reauthorization is available for third-party channels (Gmail, Outlook, and Custom SMTP). Reauthorizing an active channel may cause temporary disruptions to email delivery; ensure the process is completed promptly to minimize downtime.
To reauthorize a channel:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Manage Domains for the Built in Email channel or Configure for other channels under the Outgoing Email Channels, the tab you land on by default.
- Click the ellipsis icon in the top-right corner and select Reauthorize. You will be redirected to a new tab to log in and complete the authorization. Once authorized, the channel configuration will be saved.

3.4 Activate or deactivate a domain in Built-in Email
The email channel controls how emails are sent, while the active domain determines the sender domain used for emails sent through the Built-in Email channel.
When a domain is deactivated, emails configured to use that domain will be routed through the Built-in Email channel.
To activate or deactivate a domain:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Navigate to the Built-in Email tab under the Outgoing Email Channels, the tab you land on by default.

- Locate the required domain.
- Switch the Active/Inactive toggle based on your requirement for the domain.

3.5 Delete a domain in Built-in Email
You may choose to delete a domain’s authentication if you no longer want to use it for sending emails. This removes the domain’s verified and authenticated status, so it can no longer be used as a sender in the Built-in Email.
Note: The domain will still appear in the list, but it cannot be used for sending emails. To remove a domain completely, you must delete all verified sender email addresses associated with it.
To delete a domain:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Navigate to the Built-in Email tab under the Outgoing Email Channels, the tab you land on by default.

- Hover over the required domain’s card, click the vertical ellipsis (three-dot) icon at the top-right corner and select Delete.
3.6 Delete channel configuration
You can remove an email channel configuration if it is no longer needed. Removing a configuration permanently deletes all associated setup details from Creator and cannot be restored. The Built-in Email and ZeptoMail channels cannot be deleted; however,
domains can be removed in Built-in Email, and
ZeptoMail can be disassociated.
Note: Removing an email channel configuration only removes its setup from Creator. The actual email channel account remains unchanged.
To delete an email channel configuration:
- Click Operations in the left pane and select Email Management under APPLICATIONS.

- Click Configure under the card of required channel under the Outgoing Email Channels, the tab you land on by default.
- Click the ellipsis icon located in the top-right corner and select Delete Configuration.

Note: If the deleted channel is currently active, confirm the redirection of all email configurations to the Built-in Email channel to proceed with the deletion. To control how emails are sent after deletion, you can
configure and
activate a different channel before deleting the current active channel configuration.
4. Points to note
- Only one email channel can be active at a time. Activating a new channel affects only future outgoing emails; previously delivered emails and email records remain unchanged.
- When an active email channel configuration is deleted, the Built-in Email channel automatically becomes the active outgoing email channel, preventing disruptions to email delivery.
- For email channels other than Built-in Email, sender email addresses added in Creator must also exist as alias addresses or approved sender addresses in the connected email account before they can be used for email delivery.
- Editing the configuration or reauthorizing an active email channel may cause temporary disruptions to email delivery. Ensure all changes are completed promptly to minimize downtime.
- Understanding Email Management
- Managing sender email addresses
Previous step
Before configuring outgoing email channels, ensure you're familiar with
email management, which helps you manage how emails are sent and which sender address is used.