Hello, We are running MediaWiki on PHP 5.2.6 with Apache for Windows. Every time we try to use an IIS mail server as an MTA we receive a 501 error. When we use a Unix postfix based MTA it works fine. Could anyone please tell me what I need to do to modify my PHP.ini to get this to work? We have tried the workaround for Exchange 2003 as described in this article by Microsoft: http://support.microsoft.com/?id=291828 But this fixes a 501 in the HELO. The problem here is the rcpt to. It comes up as the following: 2008-06-23 17:39:58 10.1.100.80 xxx SMTPSVC1 xxxx xxxxxxxx 0 RCPT - +TO:<DanMashal+<dmashal@xxxxxxxxxxxxxx>> 501 0 27 44 0 SMTP - - - - Could anyone please provide me with some much needed insight on this problem? I have been searching the web and have found a few workarounds but none that actually work. Thanks, Dan
