|When a particular user mails to one of my users in Exchange environment, she gets a delivery notification saying:|
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 5.7.1 Message rejected as spam by Content Filtering. (state 18)
But my user does recieve normal emails from this outside user, the outside user says the problem is only when she sends an attachment of more than 250 Kb.
Is this a problem on my exchange server, or something on my Users outlook 2003.
Thanks, Any help appreciated.