txbakers - 1:46 am on Aug 7, 2010 (gmt 0)
This is a serious issue and one you can't solve. If an ISP blocks you, you are hosed until you contact them and try to wade through their tech support to explain your situation.
we've been blocked, at one time or another, by Yahoo, MSN, Fuse.net, Knology.com, Bellsouth.com, SBCGlobal.com, Baracuda and one or two others.
We've managed to fix it each time. Baracuda was particularly nasty to work with. Arrogant bast***s. If you are on their list they consider you the scum of the earth, period.
i started sending emails as follows with a custom header:
Mailer.AddCustomHeader ("Sender: EmailSender@example.com");
(with the real address and real domain of course).
This is what the NY Times does when you email an article. it shows up as "From: EmailSender@example.com On Behalf Of ......."
That helps a little.