Thanks Bill, Actually I didnt completely understand what my customer was trying to do, I was doing a kneejerk "what can cause a 550 error?". Upon more careful examination the problem arises when they try and relay an email with a from address of domain X to the servers that actually host email for domain X. So to be fair not all together surprising they dont like it much, even tho I have to add this is for ligitimate purposes!! :P Anyway we will need to contact the service provider hosting the email for the domain in question to see if they can modifying their systems to allow us to send mail to them...
thanks for the help! cheers Andy. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
