Michael Holzt wrote:
However i came to the conclusion that the Date:-Headerchecking from check_basicheaders is unreliable because there are other legitimate clients as well who lack the Date: header. Its against the standard, but its real life.
We have some HP printers that have a "scan to e-mail" feature and they chose not to send RFC compliant messages. So I targeted them to an internal SMTP server which doesn't care (and adds one on the fly). I'm still running check_basicheaders (and check_helofqdn too, cause I'm a BOFH) on our production servers and have yet to hear of a legit message being blocked.
I dealt with the one office that uses lookOut (I inherited them and I don't support them worth a damn), by having the outbound server run in "log_only" mode.
YMMV John
