Error IMAP - maximum number of connections

Hello, I have the following problem, in the Apple Mail app on Mac I receive the following message: maximum number of connections from user+ip exceeded (mail_max_userip_connections=10)

I investigated and this message can also appear in other applications like Thunderbird, in my case I don’t have it but I think it must be a limit on the server.

I appreciate the help to solve it.

Hello @Maxi,

You can edit file /etc/dovecot/conf.d/20-imap.conf, uncomment line #mail_max_userip_connections = 10 and increase the value to, for example, 20:

mail_max_userip_connections = 20

Once you have modified the file, restart dovecot.

systemctl restart dovecot


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