Mail stuck in smtp queue

[trevwilson]

Hi, im doing my first installation of exchange 2003 (on win 2003 server) and im having a problem with setup.

Outgoing mail sits in the queue and keeps failing (currently at 22 retries for the two test mails to my yahoo and hotmail account). Ive tried deleting the mails, restarting smtp server etc and the same just happens when i send mail again.

I have a 'smart host' setup, using our ISP's SMTP server as the host (post.demon.co.uk 25) and can telnet to the server fine and it responds to the HELO and MAIL FROM commands.



Ive set logging to maximum but im getting very little info, not sure if this is because im using a smarthost.

Apologies for bothering people here, but any ideas would be greatly appreciated.

Thanks.

 

[trevwilson]

edit

Ive turned on queue information, and i am now getting

"The remote SMTP service rejected AUTH negotiation.

 

[people3]

HI,

Is the outbound external IP address you are using hosted with demon? if not you will need to enable authentication

http://www.demon.net/helpdesk/technicallibrary/misc/smtp/

and is your domain registered with Demon so there servers can relay it?

Many Thanks

 

[trevwilson]

Hiya

Thanks for replying, i have basic authentication on, and ive checked the credentials tonnes of times.

And our domain is registered with demon .

Thanks for the link

 

[trevwilson]

Ok, its sorted, though im not sure why! i changed the port to 587 and used encrypted authentication and im up and running. Thanks for the help and link, i appreciate it.

Trev