Am 31.03.2014 01:54, schrieb cybermass: > Interesting, that is something I never even thought of
why should a server hosting example.com relay a to him submitted message from a...@example.com to b...@example.com trough a foreign server? what should that foreign server do with that message other than bounce it back again to the origin which is the MX or throw it way if there is no MX reachable from outside? > Yes the clients are configured to only go through our custom > smtps port since some ISP's block outgoing 25 and even 465. 587 is dedicated for mail-submission > These clients just need to have only one account in their > mail client I understand. Is there any other configuration > I would need to do on the server side? for the case above - no, mail from one gmail user to another gamil user is not routed trough hotmail and that behavior is logical and as expected