Smtp and the ports

[swaine]

Hey, really liking the service so far. On ad-enhanced corporate and love it.

Only little thing thats got me now, is the smtp being on port 25.
Since many ISPs block 25, and other normal outgoing mail ports, some servers around the place have decided to change to port 26 (or just, something else). I was wondering what people would think of that, and especially the admins.

This would let everyone use their mail clients without proxies, or having to find an alternate ISP.

Just a thought

-Swaine

ps. remember this would then need to be watched for high traffic, since 3rd party applications could be used (ie. spammers could emerge)

 

[Smith6612]

I've only heard of port 25 incoming being blocked on ISPs, to prevent people from running home servers. Verizon gives me 100% unblocked ports (even port 80), which I requested because of the stuff I do, but without the request, I wouldn't be able to use port 80 or port 25 incoming unless I send a request first, but I'd be able to still use the ports, but try port 25 again. I did see something about Exim being down, but I'm not sure if that's going to affect anything.

 

[swaine]

No Aliant, and I think Rogers, and some other big names (at least here in Canada) all closed off their outgoing port 25s to stop spammers. Some have suggested to call in and request it be opened, but the call center people just run me through loops, and then say its not their support issue if I can't connect to anything on that port. *sigh*


I just found a "reflector" service from no-ip.com which is a company I approve, and have used, but the service costs a hefty amount

 

[Smith6612]

Hey, is your ISP listed on DSLreports.com/broadbandreports.com? On some ISPs, your ISP may have a direct forum where you can post about what problems you're having, and they can fix it. If that's the case where they're telling you to request port 25 open, then the direct forum/the people at the site might be able to help you. Check the site out

 

[swaine]

Ya theres not a lot there. A couple posts on how people like how some services like gmail have used non-standard ports to combat the problem.

Many forums tho via google I can see about aliant blocking out-25 and being pissed off. No success stories tho.

 

[Brandon]

You can just use your ISP's SMTP server for outgoing mail from a POP/IMAP application. I think that's what you asked; if not please just reopen this.