I have never been so frustrated in my life. I spent 2 hours with AT&T and
thought that I had it fixed. I did the fixes with the smtp.att.yahoo.com and
the change of address (465) still to no avail.
I am using another incoming server that is not uncommon. What is happening?
Without a better description, no idea. MS Outlook 2003 (I think) needs to be
at the latest Service Pack to work with SSL in SMTP. Also, there have been
some issues with security certificates, particularly in conjunction with
Windows Live One Care. Have you migrated your old Bellsouth account to "at&t
Yahoo!"?
I've been a customer since the PacBell days, and migrated to "at&t Yahoo!
HSI" back in December, 2002 (when it was called, "SBC Yahoo! DSL Service").
I've been through the name changes ('smtp.pacbell.yahoo.com' to
'smtp.att.yahoo.com'), and the port changes (port 25, to port 587 w/o secure
login, to port 465 w/SSL), and have not had any trouble. Only thing is, I
don't use MS Outlook. From watching others who do, there are some issues if
Outlook is not current (latest Service Pack), or trying to use personal
security certificates (I don't).