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Opening an Additional Exim Port
When I was in technical support, I got at least a dozen or more calls a week about clients who couldn’t send email, but had no problem receiving. When incoming mail works fine but the client can’t...
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Modifying SMTP Relay Settings for Exim
cPanel’s stock installation of Exim includes a Tailwatchd driver called Antirelayd . Antirelayd is a daemon that checks /var/log/maillog for POP3 and IMAP logins and keeps track of valid logins for...
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Quota Errors in Exim’s Panic Log
In cPanel 11.25, you may be seeing errors like this in /var/log/exim_paniclog: 2010-04-15 12:33:27 failed to expand condition "${if exists {$home/etc/$domain/quota}{${if >...
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Exim ACL Ratelimit Database Not Available
In your Exim logs you may see errors like this: Warning: ACL "warn" statement skipped: condition test deferred: ratelimit database not available temporarily rejected connection in ?connect? ACL:...
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10 Tips for Improving Email Delivery
One of the most common problems that hosting providers face is the issue of user email not being delivered to other mail servers. Not only does it annoy the end user, but it’s extremely frustrating for...
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Using Custom RBL’s with Exim and cPanel
cPanel 11.28 introduces an way to easily implement your own RBLs for Exim to perform lookups against. To get started, log into WHM > Exim Configuration Editor and click on the RBLs tab, then Manage...
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Exim Privilege Escalation in 4.69-23
The cPanel security team found an issue in Exim that can potentially allow a user on the system to potentially run commands as the root user. Luckily, cPanel has already released a patch which is...
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Copy Outgoing Email on a cPanel Server with Exim
A common request we get is how a user can automatically BCC outgoing email to another address. This is most often requested by law firms that need to be able to retain copies of communication....
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Exclude Domains from RBL Checks for Incoming Email
Update: This feature is automatically enable as of cPanel 11.36.1.4 If you have RBL’s enabled globally on your server, there may be times when you want to keep certain domains from having their mail...
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Implementing SendGrid with Exim on cPanel
Setting up your cPanel server to send through a third-party mail server is very easy to do, if you understand the basics of how cPanel builds its Exim configs. You never want to edit your exim.conf...
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