I have a mail group account set up that forwards mail to individual accounts on x domain. This also forwards to y external domain. This all works fine.

Now in y domain I have users who cc the group account in x domain. This forwarding works OK for the individual accounts on the domain but y domain (beacuse of the loop that is existing) receives a postfix error error 550 5.7.1 <a@x.com>... Access denied (in reply to MAIL FROM command))

This is irritating people in y domain because each message ccd to x domain gets an error for each account. Is there any way to deal with this situation?

Regards

Hi i_nomad,

need a little more info.. I'm guessing the server where your group/list lives does not accept mail for x domain otherwise users at domain y would not be receiving the relay denied message. You will need to configure your server to accept mail for domain x and forward it on,

cheers,

kbp

OK> on X domain lets say geek.com there are 2 users jon doe and joe bloggs, joe_doe@geek.com and joe_bloggs@geek.com. There is a group setup sales@geek.com. On y domain there are 2 user accounts for the same people joe_doe@goon.com and joe_bloggs@goon.com
There are forwarders setup for sales@geek.com to joe_doe@goon.com and joe_bloggs@goon.com

So Mail is sent to sales@geek.com and received by joe_doe@geek.com and joe_bloggs@geek.com, joe_doe@goon.com and joe_bloggs@goon.com.

If joe_doe@goon.com or joe_bloggs@goon.com cc mail to sales@geek.com postfix error error 550 5.7.1 <joe_doe@geek.com>... Access denied (in reply to MAIL FROM command))
Any mail sent directly to joe_doe@geek.com and joe_bloggs@geek.com is received fine.

There is loop here. On postfix I tried adding the network to enable relay for goon.com on geek.com but this does not help.

Hi i_nomad,

Sorry for the delay, been a bit busy this week... do you actually use the joe_doe@geek.com and joe_bloggs@geek.com addresses ? Any reason you cant just put joe_doe@goon.com joe-bloggs@goon.com as members of sales@geek.com ?

Could you please let us know what the requirements are, there may be other ways to achieve them

thanks

kbp

This error is unrelated to a loop. It means that the user is unknown. From your post, it's not clear which mail server logged the error, but it may be that the second mail server (goon.com) tried to deliver joe_doe@geek.com locally and failed.