Re: Has COVAD just started Port 25 blocking?

Author	All Replies
NetFixer Freedom is NOT Free Premium join:2004-06-24 Murfreesboro, TN ·Vonage ·AT&T Southeast ·Cingular Wireless ·AT&T CallVantage 1 edit	reply to rtfm8 Re: Has COVAD just started Port 25 blocking? The telnet sessions shown below (as well as my sendmail server logs) would seem to indicate that Covad is not blocking port 25 sessions universally. Perhaps since your ISP seems to be ATT WorldNet, AT&T is responsible for blocking your port 25 sessions. I do know that my (formerly BellSouth) AT&T DSL service provided on an AT&T DSLAM blocks port 25 to all but their own SMTP servers. Perhaps this practice is becoming more universal for all AT&T DSL service. I would suggest contacting AT&T about this matter. webhost:/ # telnet mail.covad.net 25 Trying 69.49.109.11... Connected to mail.covad.net. Escape character is '^]'. 220 mail845.megamailservers.com ESMTP Sendmail 8.13.6.20060614/8.13.1; Sat, 4 Oct 2008 14:55:56 -0400 quit 221 2.0.0 mail845.megamailservers.com closing connection Connection closed by foreign host. webhost:/ # telnet smtp.cs.com 25 Trying 64.12.194.119... Connected to smtp.cs.com. Escape character is '^]'. 220 cia-mb06.mx.aol.com ESMTP mail_cia-mb06.2; Sat, 04 Oct 2008 14:56:40 -0400 quit 221 SERVICE CLOSING CHANNEL Connection closed by foreign host. webhost:/ # telnet smtp.compuserve.com 25 Trying 149.174.40.22... Connected to smtp.compuserve.com. Escape character is '^]'. 220-liaar1aa.mx.compuserve.com ESMTP Sendmail 8.13.6/8.13.4/r1.2; Sat, 4 Oct 2008 14:57:25 -0400 220-Unsolicited bulk e-mail messages are not authorized on the CompuServe 220 computer network. See www.compuserve.com. quit 221 2.0.0 liaar1aa.mx.compuserve.com closing connection Connection closed by foreign host. webhost:/ # telnet smtp.comcast.net 25 Trying 76.96.62.117... Connected to smtp.comcast.net. Escape character is '^]'. 220 OMTA05.westchester.pa.mail.comcast.net comcast ESMTP server ready quit 221 2.0.0 OMTA05.westchester.pa.mail.comcast.net comcast closing connection Connection closed by foreign host. webhost:/ # -- We can never have enough of nature. We need to witness our own limits transgressed, and some life pasturing freely where we never wander. Test your firewall.
	to forum · permalink · · 2008-10-04 15:16:19 ·


Thursday, 10-Dec 13:32:47	Terms of Use \| Privacy Policy \| Hosting by www.nac.net - DSL,Hosting & Co-lo \| feedback \| contact over 10 years online! © 1999-2009 dslreports.com. page compression OFF