Blacklisted email addresses validation is badong.
Due to the number of spam email that get through to users spam folders I decided to use the 'Control Panel' / 'Mail Administration' / 'Org Settings' / 'Anti-Spam' / 'Blacklisted Email' facility (available to the domain administrator).
I created a list of troublesome email addresses and then tried to upload them all in to the textarea blkContLst and my trouble started.
1) the messages telling you what the errors are not always helpful, which kind of negates the point of a failure message ‽
2) the textarea is extremely constrained as to the number of addresses it will take in one go (I have a list of 50,000 addresses). [Would not a simple structured file upload be better?]
3) the validation of what 'it' (you) considers to be a valid email format does not allow me to blacklist all email addresses used by spammers in my culled list. My research convinces me that it (you) is at fault.
I investigated this carefully and found that the system is not following the formatting of email guidelines in RFC6531 and RFC6532 . The result is that addresses such as the below ( culled from here ):
"much.more unusual"@example.com,
" very.unusual.@.unusual.com"@example.com,
"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com,
#!$%&'*+-/=?^_`{}|~@example.org,
"()<>[]:,;@\\\"!#$%&'*+-/=?^_`{}| ~.a"@example.org,
" "@example.org,
üñîçøðé@example.com,
üñîçøðé@üñîçøðé.com
can not be entered. Spammers then have a simple job with Zoho users of creating addresses they are unable to block. The most common example I have is where an address begins with a character outside of a>Z 0-9 I.e. it contains a valid "local-part" character (of the email address) such as the + symbol. The only such symbol that may not be the first character is '.' (a full stop) others like
I found this page is well documented, referenced and helpful: http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/ . It too gives examples of valid address that do not parse that I / it believe should.
Whilst you are fixing 3) above (as I am sure you will want to - please advise date) perhaps you would also consider addressing my 1) and 2) above too.
For what its worth it would be far simpler if you also implemented a world class anti-spam system, by default, for all users. I dread to think of the effect on your servers of many domains adding their own data like I'm intending to.
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I created a list of troublesome email addresses and then tried to upload them all in to the textarea blkContLst and my trouble started.
1) the messages telling you what the errors are not always helpful, which kind of negates the point of a failure message ‽
2) the textarea is extremely constrained as to the number of addresses it will take in one go (I have a list of 50,000 addresses). [Would not a simple structured file upload be better?]
3) the validation of what 'it' (you) considers to be a valid email format does not allow me to blacklist all email addresses used by spammers in my culled list. My research convinces me that it (you) is at fault.
I investigated this carefully and found that the system is not following the formatting of email guidelines in RFC6531 and RFC6532 . The result is that addresses such as the below ( culled from here ):
"much.more unusual"@example.com,
" very.unusual.@.unusual.com"@example.com,
"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com,
#!$%&'*+-/=?^_`{}|~@example.org,
"()<>[]:,;@\\\"!#$%&'*+-/=?^_`{}| ~.a"@example.org,
" "@example.org,
üñîçøðé@example.com,
üñîçøðé@üñîçøðé.com
can not be entered. Spammers then have a simple job with Zoho users of creating addresses they are unable to block. The most common example I have is where an address begins with a character outside of a>Z 0-9 I.e. it contains a valid "local-part" character (of the email address) such as the + symbol. The only such symbol that may not be the first character is '.' (a full stop) others like
- _ ~ ! $ & ' ( ) * + , ; = : are valid.
I found this page is well documented, referenced and helpful: http://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx/ . It too gives examples of valid address that do not parse that I / it believe should.
Whilst you are fixing 3) above (as I am sure you will want to - please advise date) perhaps you would also consider addressing my 1) and 2) above too.
For what its worth it would be far simpler if you also implemented a world class anti-spam system, by default, for all users. I dread to think of the effect on your servers of many domains adding their own data like I'm intending to.
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Important update! Re-authentication mandated for sensitive admin operations in Admin Console.
Dear Zoho Mail Community, Hope you're all doing good and staying safe! As we strive to provide you with better security for your business email needs, an additional measure has been taken to ensure more security to the sensitive Admin Operations performedImportant announcement: IPv6 support in Inbound gateway
Greetings from Zoho Mail team. We are happy to announce the support of IPv6 support for receiving emails in Zoho Mail. This post mainly addresses the admins who have configured inbound gateway for their organisation. As a part of the changes related toAdministrators now have permissions to access the Subscription and Payment details.
Hello everyone! Hope you are all staying safe during these trying times. To ensure that your organization's email service, the backbone of communication, does not get affected due to inadvertent negligence by the super administrator, we have made a few changes in our roles and permissions to handle subscription and renewal smoothly. Earlier, any organization's Subscription and Payment information in Zoho Mail could be accessed only by the organization's Super Administrator. Now, based on requestsMove ahead from Docs to WorkDrive - WorkDrive is now available in all Workplace plans!
Dear all, We are glad to announce that WorkDrive is available across all the Workplace plans, with added storage and extensive team features. Zoho WorkDrive is now available for all users, including those who subscribed before Zoho WorkDrive was introducedAnnouncement - Changes in Custom login page
In continuation to our efforts in protecting your Zoho Mail account we have made a few changes in the custom login page. We are making some enhancements in the browser to server communication to make it more secure. You may be aware of the most of the modern web browsers mandate certain security practices to showing the webpages as 'Secure'. We are rolling out the security related enhancements ensure that our custom login page accessed only in https mode and the authentication is securely done
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