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
Configure your Email to send TEXT ONLY -- See the following page:
http://expita.com/nomime.html
'74 Kombi (to be renamed - LifeSaver doesn't 'feel' right)
'69 Type 1 - AirBall the Rolling Basket Case
http://www.phorce1.com
http://www.buskatiers.org
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/
