> The domain.com is simply an example. Not the real one. Careful, you're probably gonna catch flak for that one. There's no reason to hide the offending domain from us, especially if you're seeking help relating to said domain.
> I am hoping that there is a flag somewhere I can disable so exim will > ignore this or maybe a tweak in the configuration. It's been a while since I read the RFCs, but I'm leaning towards a simple "sorry, _ is quite simply NOT ALLOWED in a hostname". I would instantly dismiss a "it works for everyone else", because that's not true. If it is Exim (it may be in your DNS resolver) that is refusing to acknowledge that hostname, you may just be out of luck - some rules just simply should not be bent around/over/under. If that admin refuses to follow the RFCs, it's his (and his users') loss. Situations like these can usually be corrected by getting your users to do a bit of legwork - have them call or somehow contact the intended recipients and tell them that they can't send email to them because their DNS is broken (or so their admin, being you, says - point to a relevant RFC if you must). This should quickly get the recipient contacting their admin and complaining which results in them either contacting you (and you can seem like the smarter one by telling them the RFC he's violating), or just fixing the problem by changing the hostname to something valid. Eli. -- ## 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/
