>probably this is obvious but it doesn't hurt to double-check: is the SMTP >server the _same_ in all three cases? Yes it is. I have contacted Hotmail Support (now there's an oxymoron!) and for the last week or so I've been doing the head-against-desk round of emails where you try and convince them that you ARE the administrator of the domain so stop asking the "is your computer plugged in" type questions and just escalate the darn issue. Been a hard one to Google. I've seen a lot of entries about people having problems with PHP mail() and Hotmail, but I'm not. The only issue left in our situation is the Squirrelmail-handled emails being dropped. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ -- squirrelmail-users mailing list Posting Guidelines: http://www.squirrelmail.org/wiki/MailingListPostingGuidelines List Address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List Archives: http://news.gmane.org/thread.php?group=gmane.mail.squirrelmail.user List Archives: http://sourceforge.net/mailarchive/forum.php?forum_id=2995 List Info: https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
