Email error: Recipient address rejected

[Khimaira]

Your phpBB Version: 2.0.22
phpBB Type: Integramod 141
MODs: Yes
Your knowledge: Basic Knowledge
Board URL: [url]http://[/url]

PHP Version:
MySQL Version:


What was done before the problem appeared?



What was done to try to solve the problem?
tried switching from smtp to php mailer (php mailer doesn't work at all)



De.scription and Message

I am getting the following error when responding to posts (but only to certain member's posts):

[code]Ran into problems sending Mail. Response]

I think I have narrowed it down to the specific member on my board that gives this error when replying but would I be correct in assuming that this error would be caused by either an invalid email address for them or their email server is down? Or is this caused by something internal on the forum? They have an email address entered in their profile.

Line 166 of smtp.php has code related to CC and BCC fields. Where would I check for the virtual mailbox table in the database?

[Teelk]

Either your SMTP host does not trust your web server as a source of outbound mail, so it will not accept any mail that can not be delivered locally. Or, someone's chosen to be informed by email when a post is updated, and their email address doesn't exist.

If it's the first problem, then you'll have to contact the SMTP host to get them to allow the addy.