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I know that residential ISPs block outgoing port 25 because of the spam issue. Is it common for them to block it incoming as well? You don't really need outgoin
by scarhill 7y ago
I know that residential ISPs block outgoing port 25 because of the spam issue. Is it common for them to block it incoming as well? You don't really need outgoing port 25 to run your own mail server.
- progval 7y ago> You don't really need outgoing port 25 to run your own mail server. You do need it to send mail
- dredmorbius 7y agoDirectly, yes, but not via a smart host, which is how most SOHO mailservers (where used) are configured. It's not quite a full-fledged, full-privilege system, but it continues to provide major benefits over Webmail or client-based (POPS, IMAPS) configurations.
- allset_ 7y agoYou definitely need outbound port 25/587 if you want to send email to others.
- scarhill 7y agoYou need an outgoing mail server, but ISPs provide those, and typically don't block port 587.
- m463 7y agoYes. Some allow it after a shibboleet phone call.