Topic: Server only - can't send an e-mail

[dilligaf]

Have an SMEServer 7.x
Had process mail set up to send certain admin e-mails out to a user.
All of a sudden it stops working.
Looking at the logs, this is what I am seeing:

Connected to 69.27.110.112 but sender was rejected.
Remote host said: 553 5.1.8 <dar@c21.local>... Domain of sender address dar@c21.local does not exist.

I assume it looks to the ISP as we are trying to relay mail?

any work around to get this to work again?
Thanks

[CharlieBrady]

Connected to 69.27.110.112 but sender was rejected.
Remote host said: 553 5.1.8 <dar@c21.local>... Domain of sender address dar@c21.local does not exist.

I assume it looks to the ISP as we are trying to relay mail?

No, it plainly says what the problem is - "Domain of sender addresss ... does not exist".

any work around to get this to work again?

Either configure a valid domain name (register it, set up DNS for it, and configure the server to use it), or do not send mail onto the Internet.

[dilligaf]

It worked for many months, has just recently quit.
When I log onto their servers webmail as "dar" and send and e-mail to dan@willcraft.com I get the e-mail (obviously I can't reply back, but I don't need that, i only need it to send)
When I send an e-mail to the user@c21lloydminster.com ( or any user at that domain, who used to get the e-mails) I get the message I posted.

<user@c21lloydminster.com>:
Connected to 69.27.110.112 but sender was rejected.
Remote host said: 553 5.1.8 <dar@c21.local>... Domain of sender address dar@c21.local does not exist

[CharlieBrady]

It worked for many months, has just recently quit.

So someone has introduced new anti-spam rules.

[/quote]
When I send an e-mail to the user@c21lloydminster.com ( or any user at that domain, who used to get the e-mails) I get the message I posted.

<user@c21lloydminster.com>:
Connected to 69.27.110.112 but sender was rejected.
Remote host said: 553 5.1.8 <dar@c21.local>... Domain of sender address dar@c21.local does not exist
[/quote]

The mailserver for c21lloydminster.com is refusing to accept those mails, because they can't be replied to. [Why do people not *read* bounce messages they receive?]

I've already told you what you need to do.