Re: [cobalt-users] 554 Error DSN: Service unavailable

[flash22@xxxxxxx]

On Fri, 7 Dec 2001, Gilbert Bechtel wrote:

[trying this again, oops]
> Looking for some direction here, My problem is that none of the users on my server can send mail to 

> I talked to MSN tech support and was told 
that a 554 error was a problem with my DNS settings and 
They are correct...

> The original message was received at Fri, 7 Dec 2001 21:20:33 -0500
> from h0001026b96d0.ne.mediaone.net [24.91.223.99]

>   ----- Transcript of session follows -----
> ... while talking to smtp-gw-4.msn.com.:
> >>> HELO localhost.localdomain.
> <<< 501 5.5.4 Invalid Address

Look closely, your client/server is claiming it's domain name is
localhost.localdoman, you havn't set your domain name either on the
server, or in the client mailer , msn want's a real domain name from you.
[localdomain isn't resolveable into a routabe address, it's not valid
outside the machine]

Make sure your server has a domain name set in it's base configuration,
and a hostname.


> pri=30873, nrcpts=1, msgid=<200112080220.VAA09979@xxxxxxxxxxxxxxxxxxxxxx>

another hint...the end of the messageID should also contain your hostname,
so it's not available to the sending client, or the client is
misconfigured..or media one filtered your email ;0

 > relay=h0001026b96Ao.ne.mediaone.net [24.91.223.21]

tip: send yourself an email and look at the headers...see who claims to
have sent it in the first 'Received:' header

gsh