Copy/pasting a blog post just to make you aware of it, in case there are email delivery problems...
Spam blocklist SORBS has been shut down, update Anti-Spam settings
The spam blocklist SORBS has been shut down. By default Zimbra uses SORBS via SpamAssasin, but also many Zimbra Administrators have set-up SORBS as part of Postfix MTA restrictions. Monitor the Zimbra MTA logging in /var/log/zimbra.log and make changes to your configuration to make sure email continues to be delivered properly.
Postfix reject_rbl_client
Check Zimbra’s MTA blocklist configuration by running the following command as the OS user zimbra:
In the output of the command see if a line is present that contains sorbs such as dnsbl.sorbs.net and if so remove it by running for example:
SpamAssassin
A future update of SpamAssassin in Zimbra will remove SORBS meanwhile since SORBS is on many places in SpamAssassin, one way to disable it is by adding the following configuration to your /opt/zimbra/data/spamassassin/localrules/local.cf file.
Then as the OS user zimbra run the commands:
Please note that the SpamAssassin steps have not been validated by our QA team yet, so keep an eye out for updates on this blog post at blog.zimbra.com.
Further reading
An official announcement can not be found on the SORBS website, but we can see it has been removed from SpamAssassin in:
https://github.com/search?q=repo%3Aapac ... pe=commits
Spam blocklist SORBS has been shut down, update Anti-Spam settings
The spam blocklist SORBS has been shut down. By default Zimbra uses SORBS via SpamAssasin, but also many Zimbra Administrators have set-up SORBS as part of Postfix MTA restrictions. Monitor the Zimbra MTA logging in /var/log/zimbra.log and make changes to your configuration to make sure email continues to be delivered properly.
Postfix reject_rbl_client
Check Zimbra’s MTA blocklist configuration by running the following command as the OS user zimbra:
Code:
zmprov gcf zimbraMtaRestriction
Code:
zmprov mcf -zimbraMtaRestriction “reject_rbl_client dnsbl.sorbs.net”zmmtactl restart
A future update of SpamAssassin in Zimbra will remove SORBS meanwhile since SORBS is on many places in SpamAssassin, one way to disable it is by adding the following configuration to your /opt/zimbra/data/spamassassin/localrules/local.cf file.
Code:
dns_query_restriction deny sorbs.net
Then as the OS user zimbra run the commands:
Code:
zmmtactl restart && zmamavisdctl restart
Please note that the SpamAssassin steps have not been validated by our QA team yet, so keep an eye out for updates on this blog post at blog.zimbra.com.
Further reading
An official announcement can not be found on the SORBS website, but we can see it has been removed from SpamAssassin in:
https://github.com/search?q=repo%3Aapac ... pe=commits
Statistics: Posted by barrydegraaff — Tue Jun 11, 2024 7:39 pm