Changes

  config setprop imaps ConcurrencyLimitPerIP 20

  config setprop imaps ConcurrencyLimitPerIP 20

  signal-event post-upgrade; signal-event reboot

  signal-event post-upgrade; signal-event reboot

{{Note box| for sme9, only the key imap has properties ConcurrencyLimitPerIP,checkConcurrencyLimit,ProcessMemoryLimit. If you set these properties to the key imaps, a migrate fragment will remove them automatically}}

{{Note box| for sme9, only the key imap has properties ConcurrencyLimitPerIP,checkConcurrencyLimit,ProcessMemoryLimit. If you set these properties to the key imaps, a migrate fragment will remove them automatically.}}

To see configuration:

To see configuration:

  config show imap

  config show imap

  tcpsvd: info: deny 30693 0:10.1.0.21 ::10.1.0.104:49332 ./peers/10.1.0

  tcpsvd: info: deny 30693 0:10.1.0.21 ::10.1.0.104:49332 ./peers/10.1.0

}}

}}

{{Tip box|Mobile devices have a tendency to frequently disconnect and connect from the network. When this disconnect happens, the sessions on the server are not always immediately cleaned up (they get cleaned up after a time out of some minutes). When the email client reconnects, they create new network connections and you get into the situation that these new connections get denied because of the concurrency limit. On the mobile device this may be noted as a "Unable to connect to server" message.

{{Tip box|Mobile devices have a tendency to frequently disconnect and connect from the network. When this disconnect happens, the sessions on the server are not always immediately cleaned up (they get cleaned up after a time out of some minutes). When the email client reconnects, they create new network connections and you get into the situation that these new connections get denied because of the concurrency limit. On the mobile device this may be noted as a "Unable to connect to server" message.}}

}}

{{Tip box|Some email clients use a separate connection per imap folder, so the concurrency limits may occur for users that have many imap folders.}}

{{Tip box|Some email clients use a separate connection per imap folder, so the concurrency limits may occur for users that have many imap folders.

}}

===Mail server is not an IMAP4 mail server===

===Mail server is not an IMAP4 mail server===

This is a bug in Thunderbird, the previous tips may help

This is a bug in Thunderbird, the previous tips may help.

===The Bat===

===The Bat===