Problems receiving internet e-mai

[snella]

Hi,

I am having a problem receiving internet e-mails from some domains, can anyone tell me what ports should be opened up on the firewall (Nokia IP530) so I can receive mail from all domains. At the moment I can receive mail from some domains e.g. hotmail but not from others e.g. btinternet.

 

[nuxguru]

All your emails are coming through one port and that is port 25.

Do you have spam filtering tools intergrated with your email server or firewall? May be they are rejecting emails from blacklisted domains...