It is a possibility, of which I have no control over. If the recipient's IT dept decide to block me then I'm outta luck. My first priority is to ensure that there's nothing on my end that is wrong or that will cause emails to fail delivery.
Troy > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Rick Klinge > Sent: Tuesday, November 25, 2003 1:47 PM > To: [EMAIL PROTECTED] > Subject: RE: [IMail Forum] OT: 550 Invalid domain: smells like bad DNS > > > Could it be your user is not a member of the other server to > be sending mail > through? Any possibility that the other server has your ip > address/block > banned? > > ~Rick > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] Behalf Of Troy Hilton > > Sent: Tuesday, November 25, 2003 12:08 PM > > To: [EMAIL PROTECTED] > > Subject: RE: [IMail Forum] OT: 550 Invalid domain: smells > like bad DNS > > > > > > Unfortunately Gerald, this is an Exchange server, not > IMail. I needed to > > pick some brains that are smarter than mine on this and I know > > that there's > > a vast wealth of knowledge on this list. > > > > My user can send and receive emails fine to many locations > but there are a > > number of clients that he gets "undeliverable" from with > the "550 Invalid > > domain" error. The boss is sweatin me on this but I can't see > > anything wrong > > with my servers. > > > > Troy > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] Behalf Of Gerald > > > Sent: Tuesday, November 25, 2003 12:43 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [IMail Forum] OT: 550 Invalid domain: smells > like bad DNS > > > > > > > > > On Tue, 25 Nov 2003 10:46:54 -0500 > > > Troy Hilton was heard babbling something about [IMail Forum] > > > OT: 550 Invalid domain: smells like bad DNS: > > > > > > > Hello All, > > > > > > > > Need some direction here. I've got a domain called > > > sofmail.com that we > > > > use > > > > for our Small Business Server 2003. I've got a user who > gets a "550 > > > > Invalid > > > > domain sofmail.com" error when sending to several external > > > accounts. My > > > > concern is that the DNS host (MCI) didn't setup the reverse DNS > > > > correctly. > > > > Being that I'm not a DNS guru I was hoping perhaps someone > > > could shed > > > > some > > > > light on what's pointing where. I'm thinking that the > > > recipient's mail > > > > server is doing a reverse lookup for sofmail.com and can't > > > find it. I > > > > think > > > > MCI created a PTR for mail.sofmail.com. What should it be? > > > > > > > > Any help is appreciated here. > > > > > > > > Troy > > > > > > The others verified that your DNS is {mostly} correct. I > > > assume you have > > > one of the "no-relay" options turned on in Imail. You said he > > > gets error > > > 550 when trying to send to EXTERNAL domains -- implying > that mail to > > > domains on your own host work OK. > > > > > > Are you sure he has his SMTP AUTHentication set up right? > > > IMail may simply > > > be refusing to relay for him because he isn't authenticating > > > as a valid > > > user who is OK to relay mail for. I realize the normal AUTH > > > failure message > > > is "550 -- Not a Gateway" but it's something to look at. > > > > > > -- > > > Gerald V. Livingston II > > ___________________________________________________________________ > Virus Scanned and Filtered by http://www.FamHost.com E-Mail System. > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
