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can pop3 & imap run on the same server

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by kontak123 1 view

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hi
im installing 2 kind of web base email UebiMiau and squirrelmail. Uebimaiu uses pop3 and squirrelmail use imap but i only have one mailserver. My question is can this two pop3 and imap run on the same server at the same time? If YES will the2 (pop&imap) receive the same email messeges if someone send me an email...

Thanks

5 replies

by charl

POP3 and IMAP are actually protocols, specifically for email. This means they listen on the default TCP ports (110 - POP3, 143-IMAP). If you install both using the default protocols, there will be contention, the first service to come up will grab the port, the second one will fail. You could in some Applications, change the default port numbers, but this would not be practical.

by charl

It would be impractical as you would need to tell everyone who wanted to send you email to use the other port. You could do it if you had a proxy server/firewall, where you could do some port translation. The short answer thus, you cannot run 2 email servers on the same machine, if they will both be listening on POP3 and IMAP4. You could run both, where one only listens POP3, the other only IMAP.

Hope this helps

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