nanog mailing list archives
RE: Why do so few mail providers support Port 587?
From: <andrew2 () one net>
Date: Fri, 25 Feb 2005 08:49:15 -0500
Valdis.Kletnieks () vt edu wrote:
On Thu, 24 Feb 2005 16:51:50 EST, andrew2 () one net said:There seem to be many who feel there is no overwhelming reason to support 587. I can certainly see that point of view, but I guess my question is what reasons do those of you with that viewpoint have *not* to implement it? I just don't see the harm in either configuring your MTA to listen on an extra port, or just forward port 587 to 25 at the network level. Other than a few man-hours for implementation what are the added costs/risks that make youso reluctant? What am I missing? You *don't* want to just forward 587 to 25. You want to to use SMTP AUTH or similar on 587 to make sure only *your* users connect to it as a mail injection service (unless, of course, you *want* to be a spam relay ;)
I guess my assumption was that SMTP AUTH was already configured on port 25. :-) That's how we're doing it -- I've opened up port 587 more as a move to help roaming users get around port 25 blocks imposed by various ISP's around the country than anything else. For us it was a fairly trivial change to make, which is why I was inquiring as to the apparent strenuous reluctance on the part of some to do the same. Andrew
Current thread:
- Re: Why do so few mail providers support Port 587?, (continued)
- Re: Why do so few mail providers support Port 587? Adrian Chadd (Feb 24)
- Message not available
- Message not available
- Message not available
- Re: Why do so few mail providers support Port 587? Adrian Chadd (Feb 25)
- Re: Why do so few mail providers support Port 587? Eric A. Hall (Feb 25)
- Re: Why do so few mail providers support Port 587? Frank Louwers (Feb 25)
- Re: Why do so few mail providers support Port 587? Valdis . Kletnieks (Feb 25)
- Re: Why do so few mail providers support Port 587? Nils Ketelsen (Feb 25)
- Re: Why do so few mail providers support Port 587? Joe Maimon (Feb 25)
- Re: Why do so few mail providers support Port 587? Eric A. Hall (Feb 25)
- Re: Why do so few mail providers support Port 587? Nils Ketelsen (Feb 24)
- Re: Why do so few mail providers support Port 587? Valdis . Kletnieks (Feb 24)
- RE: Why do so few mail providers support Port 587? andrew2 (Feb 25)
- Re: Why do so few mail providers support Port 587? Andrew - Supernews (Feb 24)
- Re: Why do so few mail providers support Port 587? Robert L Mathews (Feb 26)
- Re: Why do so few mail providers support Port 587? Jim Popovitch (Feb 26)
- Re: Why do so few mail providers support Port 587? Mikael Abrahamsson (Feb 26)
- Re: Why do so few mail providers support Port 587? Adrian Chadd (Feb 15)
- Re: Why do so few mail providers support Port 587? Bob Martin (Feb 15)