{{Tip box|msg=You can see if you are running out of the number of available connections in your log file /var/log/dovecot/current and look for messages like the log extract below where the ConcurrencyLimitPerIP was set to 20. A 21st connection was attempted and was denied.
{{Tip box|msg=You can see if you are running out of the number of available connections in your log file /var/log/dovecot/current and look for messages like the log extract below where the ConcurrencyLimitPerIP was set to 20. A 21st connection was attempted and was denied.
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@400000005396a2d215b40d9c imap-login: Info: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=12): user=<stephane>, method=PLAIN, rip=90.84.144.xxx, lip=192.168.xx.15, TLS
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@400000005396a2d215b40d9c imap-login: Info: Maximum number of connections from user+IP exceeded (mail_max_userip_connections=12): user=<stephane>,