Perhaps it wasn't at the time it was previously sent. For example, some recipients have stale MX records that point to dead SMTP hosts.
Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John B Sent: Wednesday, April 04, 2007 10:27 AM To: Exchange Discussions Subject: Re: Send On Behalf Error Yes, I did send to it and our systems delivered to it. So it's a valid smtp address. ----- Original Message ---- From: Chris Scharff <[EMAIL PROTECTED]> To: Exchange Discussions <[email protected]> Sent: Tuesday, April 3, 2007 10:00:03 AM Subject: RE: Send On Behalf Error Looking at the logs did anyone send to the address listed in the NDR? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John B Posted At: Monday, April 02, 2007 1:50 PM Posted To: swynk Conversation: Send On Behalf Error Subject: Re: Send On Behalf Error I'm sorry, I misread your email. No she does not have "Send As" She just has " Send on Behalf Of". My fault. ----- Original Message ---- From: Ed Crowley [MVP] <[EMAIL PROTECTED]> To: Exchange Discussions <[email protected]> Sent: Monday, April 2, 2007 2:45:39 PM Subject: RE: Send On Behalf Error Well, there you go. That's different than "Send on Behalf of". Send As allows Person B to send a message that in every way looks like it's sent by Person A. Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John B Sent: Monday, April 02, 2007 11:40 AM To: Exchange Discussions Subject: Re: Send On Behalf Error Yes they do. ----- Original Message ---- From: Ed Crowley [MVP] <[EMAIL PROTECTED]> To: Exchange Discussions <[email protected]> Sent: Monday, April 2, 2007 2:38:39 PM Subject: RE: Send On Behalf Error Person B could have sent using SMTP with person A's address as the From: and/or Reply To: addresses (like spammers do). Does Person B have Send As right on Person A's user account? Ed Crowley MCSE+Internet MVP Time Magazine's Person of the Year! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John B Sent: Monday, April 02, 2007 11:17 AM To: Exchange Discussions Subject: Send On Behalf Error All, I'm having an issue regarding a users account. The person A has granted person B "Send on Behalf" permissions on person A's mailbox. Person A received a bounceback message from an external domain that she did not send email to. From looking through the logs person B is the only person sending to this domain. Does anyone have an idea why person A would receive a bounceback message from an email that possibly person B sent from her own account? Thank you, John B. ________________________________________________________________________ ____ ________ We won't tell. Get more on shows you hate to love (and love to hate): Yahoo! TV's Guilty Pleasures list. http://tv.yahoo.com/collections/265 _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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