Outlook access to External Mail server

[shabiersayed]

Hi,

My setup goes like this...Internal(100.x.x.101)---proxy---firewall---router---Internet---ISP (MAIL Server - 212.xxx.xxx.40). If i want to access my e-mails located at ISP. What are the protocols i should allow apart from SMTP, POP3? If anybody has got the same setup, help me out

[nkhawaja]

you may consider allowing port 110, port 25, port 143 for imap. may be you need to allow port 80 and port 443

thanks

Nadeem

[shabiersayed]

But Nadeem, i believe Port no 443 is for SSL, is it required to allow? Anyways i will open this port as well and see...

[nkhawaja]

not necessarily. The only required ports are 110 and 25. but outlook web access may require you to open up port 443 and port 80

thanks

Nadeem