Hi, I have several users that are getting this error when sending using our exchange 2007 server in outlook, thunderbird Eudora, windows mail etc. Ive done a lot of research on this and got the subject of this message from the receive logs on the server
"550 5.7.1 Client does not have permissions to send as this sender" I see that a lot of sites have postings that suggest that the users do not have the "ms-Exch-SMTP-Accept-Authoritative-Domain-Sender" I also see that various postings have various different methods of granting the said permission so my questions are these.... 1) Does that make sense that adding that permission is what needs to be done? I don't feel so comfortable about running permission altering things when I don't fully understand the repercussions. 2) What is the proper way to grant this permission, I see one posting that has a syntax granting it to a particular user (-user 'domain\username') and another one that uses -user AU (which I have no idea what AU stands for, but implies that it grants it to everyone). Has anyone run into this and have a suggestion? Its worth noting that there are several accounts also that have no problem sending and seem to work fine. Also I am talking specifically about users using IMAP/SMTP and not MAPI. Thanks! Ehren J. Benson, MCSE Windows Systems Administrator Department of Physics and Astronomy Michigan State University 1209 A Biomed Phys Sci [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]> 517-884-5469 ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
