Exim Error: Temporarily rejected connection in “connect” ACL: ratelimit database not available

Today we’ve updated exim on one of our cPanel server, But after exim update it started generating error message  in /var/log/exim_mainlog like :

2010-03-18 11:31:43 H=xxxx.xxxx.xxxx [xxx.xxx.xxx.xx] temporarily rejected connection in “connect” ACL: ratelimit database not available

2010-03-18 11:31:43 H=xxxx.xxxx.xxxx [xxx.xxx.xxx.xx] temporarily rejected connection in “connect” ACL: ratelimit database not available

The cause for this issue is exim cache database might be corrupted. To fix this error the exim cache database on the server needs to be remove(Exim rebuilds this database again after exim restart)

Run the following command on root to remove the cache database :

#root@test~]# rm -fv /var/spool/exim/db/*

Then restart the exim :

#root@test[~]# /etc/init.d/exim restart

This will probably resolve the issue.

pop3d: LOGIN FAILED error on VPS containers

VPS containers running on cpanel sometimes show the following error in /var/log/maillog

pop3d: LOGIN FAILED, user=user@userdomain.net, ip=[::ffff:114.142.142.19]
pop3d: Disconnected, ip=[::ffff:114.142.142.19]
pop3d: Connection, ip=[::ffff:114.142.142.19]
pop3d: LOGIN FAILED, user=user@userdomain.net, ip=[::ffff:114.142.142.19]
pop3d: Disconnected, ip=[::ffff:114.142.142.19]

Trying to login in via webmail, you can login to the first page, where you select between Horde/Squirrelmail but trying to login further to Horde generates this error, Also via Outlook the email account does get authenticated.

Solution.

1.) Possibly you can try to update Cpanel by setting it to release version and doing a /script/upcp –force

2.) nano /etc/xinetd.d/popa3d
change disable = no to
disable = yes

service xinetd restart
service cpanel restart

3.) Check if the domain is present in /etc/localdomains and /etc/userdomains , If not add the domain

4.) /scripts/reseteximtodefaults and /scripts/fixvaliases

Please note the solutions can differ for the problems, In our case we just need to add the domain in  /etc/userdomains file, Maybe it does not work for you so you can try the other solutions given above.

Berkeley DB error: PANIC

Berkeley DB error: PANIC: Invalid argument
Berkeley DB error: PANIC: fatal region error detected; run recovery

If you are getting the above errors in your exim log file then you likely have corrupt exim DB files. The simple way to fix them is to probably stop exim and then remove the contents (not the directory) of /var/spool/exim/db/ and then restart exim which will recreate them afresh.

External MX records on cpanel server

 If your domain is using external mail server ( Google mail ) for its pop and smtp activities, you need to make the following changes in your cpanel server.

REMOVE the domain from /etc/localdomains
ADD the domain to /etc/remotedomains.

Finalyl restart exim , Check via the following command to send test email.

sendmail -v “test@gmail.com”

sendmail should connect to google mx records.