Many folks blacklist dynamic IP ranges. Often, even static IPs are in ranges that are "known" to be dynamic, and thus get blacklisted.
*Drew Van Zandt Cam # US2010035593 (M:Agapito Acosta) * On Wed, Aug 6, 2014 at 12:38 PM, Daniel Barrett <[email protected]> wrote: > > Last week without warning, all my outgoing FIOS email started getting > rejected by Verizon's SMTP server, smtp.verizon.net, with this error: > > 500 5.7.0 Unknown AUTH error -1 (Internal authentication error) > > I looked up "500 5.7.0," and it means my IP address has been > blacklisted. (For no reason that I can imagine.) No client changes > happened on my end to cause this. > > Has anyone else ever experienced this and gotten it fixed? The Verizon > support people I've spoken with don't seem to have the knowledge to > understand a server-side problem like this. They keep asking if I can > log into their webmail server, what my Outlook settings are, > etc. Eventually they check with some mysterious "email server team," > who claims my IP address is not blacklisted... and yet > smtp.verizon.net is giving me the above SMTP error "500 5.7.0" every > time. > > In the meantime, I have signed up with a different outgoing email > provider, which is why I could send this note. :-) > > Thanks for any tips...! > > -- > Dan Barrett > [email protected] > > _______________________________________________ > Discuss mailing list > [email protected] > http://lists.blu.org/mailman/listinfo/discuss > _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
