Chapter 2 of the saga... After Verizon insisted for the Nth time that I am not blacklisted and my email client settings must be wrong, I tried an experiment. My Verizon username and password definitely work on verizon.com and webmail.verizon.com. Could it be possible, I wondered, that they could be failing ONLY on smtp.verizon.net? The answer appears to be YES.
I used telnet and stunnel4 to talk to smtp.verizon.net over port 465, using the "AUTH LOGIN" command to authenticate, after base-64-encoding my username and password: $ telnet localhost <stunnel port number> ... 220 vms173025pub.verizon.net -- Server ESMTP (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) ehlo blazemonger.com 250-vms173025pub.verizon.net 250-8BITMIME 250-PIPELINING 250-CHUNKING 250-DSN 250-ENHANCEDSTATUSCODES 250-HELP 250-XLOOP 909D1845605982A0426FBB076A98755C 250-AUTH DIGEST-MD5 PLAIN LOGIN CRAM-MD5 250-AUTH=LOGIN PLAIN 250-ETRN 250-NO-SOLICITING 250 SIZE 20971520 auth login 334 VXNlcm5hbWU6 <pasted my base-64 encrypted Verizon username> 334 UGFzc3dvcmQ6 <pasted my base-64 encrypted Verizon password> 535 5.7.8 Bad username or password (Authentication failed). And lo and behold, Verizon's SMTP server rejected my valid username/password combination. (I don't know why I'm seeing a "535 5.7.8" error here vs. a "550 5.7.0" blacklist error when I send mail through postfix.) I'd never done the above AUTH LOGIN technique before, so I tried it with a non-Verizon SMTP server, and authentication worked perfectly. So the method should be OK, but smtp.verizon.net is rejecting my credentials. So, my current hypothesis is that my Verizon username and/or password got mysteriously changed (or removed) from whatever repository that smtp.verizon.net checks, while it's still valid on other Verizon web sites. I am not optimistic about even getting a Verizon rep to understand this problem...! -- Dan Barrett [email protected] _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
