nanog mailing list archives
Re: Charter blocking Port 25
From: Todd Vierling <tv () duh org>
Date: Thu, 10 Jun 2004 11:39:20 -0400 (EDT)
On Thu, 10 Jun 2004, Jeroen Massar wrote: : > That's why port 587 was invented. It's the MSA (mail *submission* agent) : > port, intended only for initial injection of mail into the SMTP delivery : > network. Learn it, believe it, use it. 8-) : : Mail *SPAM* Agent? ;) Port 587 should always be authenticated. If it isn't, that's a misconfiguration. (Of course, those of us on SPAM-L have even seen bots successfully perform SMTP AUTH, but that's certainly in the minority. Port-25 blocking for dynamic/residential ranges is still considered good form, as it does cut down significantly on the level of unauthenticated wormspew.) -- -- Todd Vierling <tv () duh org> <tv () pobox com>
Current thread:
- Re: Charter blocking Port 25, (continued)
- Re: Charter blocking Port 25 Deepak Jain (Jun 09)
- Re: Charter blocking Port 25 W. Mark Herrick, Jr. (Jun 09)
- Re: Charter blocking Port 25 Gregory (Grisha) Trubetskoy (Jun 09)
- Re: Charter blocking Port 25 Richard Parker (Jun 09)
- Re: Charter blocking Port 25 Gregory (Grisha) Trubetskoy (Jun 10)
- Re: Charter blocking Port 25 J.D. Falk (Jun 09)
- Re: Charter blocking Port 25 matthew zeier (Jun 09)
- Re: Charter blocking Port 25 John Payne (Jun 09)
- Re: Charter blocking Port 25 Todd Vierling (Jun 10)
- Re: Charter blocking Port 25 Jeroen Massar (Jun 10)
- Re: Charter blocking Port 25 Todd Vierling (Jun 10)
- Re: Charter blocking Port 25 Michael Loftis (Jun 09)
- Re: Charter blocking Port 25 Henning Brauer (Jun 10)
- Re: Charter blocking Port 25 Konstantin Barinov (Jun 10)