yep, I've seen those when a SPAM filter is configured to block any email for unregistered users...
On Jan 24, 2008 7:56 AM, Micheal Espinola Jr <[EMAIL PROTECTED]> wrote: > This is all a best-guess only based on the extremely limited > information you have provided us. > > Typically, a 550 5.7.1 is a spam filter type response. A 5.7.1 is a > block due to administrative policy, again, a type of filter (spam > filter?) is in place. > > Again typically, I see 550 5.7.1's when someone has made a mistake in > their spam filter config. The verbose part of the message is not > always accurate. In some cases it is intentionally misleading. > > More info: > > < > http://www.asspsmtp.org/wiki/SMTP_Status_Codes#Security_or_Policy_Status_-_x.7..23 > > > > > On Jan 24, 2008 10:27 AM, Carol Custard <[EMAIL PROTECTED]> wrote: > > > > > > > > > > Can anyone give me more information than that? > > > > > > > > > > Carol Custard > > > > Systems Administrator > > > > Flynn Center for the Performing Arts > > > > (802)-652-4569 > > > > > > > > Please send all tech support issues to [EMAIL PROTECTED] > > > > > > > > > > > > From: Don Ely [mailto:[EMAIL PROTECTED] > > Sent: Thursday, January 24, 2008 10:26 AM > > > > To: MS-Exchange Admin Issues > > Subject: Re: Relay Bounce Backs > > > > To: MS-Exchange Admin Issues > > Subject: Re: Relay Bounce Backs > > > > > > > > > > > > Concur > > > > > > > > On Jan 24, 2008 7:21 AM, Micheal Espinola Jr <[EMAIL PROTECTED]> > > wrote: > > > > Spam filter. > > > > > > > > On Jan 24, 2008 10:04 AM, Carol Custard <[EMAIL PROTECTED]> > wrote: > > > > > > > > > > > > > > > We have been getting intermittent relay bounce backs has anyone else > had > > > that issue? > > > > > > > > > > > > From: System Administrator > > > > > > Sent: Monday, January 21, 2008 8:48 AM > > > > > > To: [EMAIL PROTECTED] > > > > > > Subject: Undeliverable: w/e 1/20 > > > > > > > > > > > > Your message did not reach some or all of the intended recipients. > > > > > > > > > > > > Subject: w/e 1/20 > > > > > > Sent: 1/21/2008 8:48 AM > > > > > > > > > > > > The following recipient(s) could not be reached: > > > > > > > > > > > > 'Michael Decelles' on 1/21/2008 8:48 AM > > > > > > You do not have permission to send to this recipient. For > > > assistance, contact your system administrator. > > > > > > < flynnexch.flynncenter.org #5.7.1 smtp;550 5.7.1 Unable > to > > relay > > > for [EMAIL PROTECTED]> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Carol Custard > > > > > > Systems Administrator > > > > > > Flynn Center for the Performing Arts > > > > > > (802)-652-4569 > > > > > > > > > > > > Please send all tech support issues to [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > ME2 > > > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > > ~ http://www.sunbeltsoftware.com/Ninja ~ > > > > > > > > > > > > > > > > > > > > -- > ME2 > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
