APF x Cpanel strange behaviour

[cix]

Hello guys,
After enabling APF on my server, I got a strange behaviour with a few customers.

When they tried to download their messages through POP3, outlook delivered an error:

Servidor: 'mail.hostabcde.com'
ID Windows Live Mail: 0x800CCC0F
Protocolo: POP3
Porta: 995
Segura (SSL): Não

From prompt - using telnet:
ERR Cannot connect to POP server 75.126.xxx.xxx <75.126.xxx.xxx:995>, connect error 10060. Connection failed

When I disabled APF, it worked fine.

So for some reason, it seems like a port forward from 110 to 995, however for many customers that problem doesn't occur...

Any idea what could be the problem?

PS: I won't use CSF. Thanks very much.

[vanessa]

Are you maybe not allowing enough connections for pop-ssl? Check WHM > Mailserver configuration and make sure you're allowing enough connections for the whole server and per IP.