Jeremy Harris <[email protected]> (Do 13 Nov 2014 14:00:36 CET): > (Caveat: I've not touched Exchange in ages) > Do you have the Recipient Filter enabled? > http://technet.microsoft.com/en-us/library/bb123891%28v=exchg.150%29.aspx
Thank you. Reading this it seems to be possible. I'll report the solution to this list. (I think, I got this link already, but I was confused because the Exchange2013 people kept telling me, that it is not possible to reject at RCPT) > > Yes, I know, using cutthrough routing/delivery could partially > > solve my problem. But it's limited to one recipient per message, if > > I got it right. > > To single-recipient messages; it falls back to normal store-and-forward > if a second RCPT TO is received. Theoretically multi-recipient could > be supported if both sides ran PRDR and exim could handle multiple > concurrent outbound connections (for the multiple-recipient-domain > case). Or if we gave up on rfc822 header processing, and store-forward > for the temp-error cases... Exim could keep the cutthrough in cases where the recipient n (n>1) gets the same routing as recipient 1. I think this would solve lots of use cases where exim forwards the mail to exactly one backend server. -- Heiko
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