For the usage of "sender_verify" the documentation states:
| 40.2 Sender verification
|
| When the sender_verify configuration option is set, Exim checks the senders of
| incoming SMTP messages, that is, the addresses given in the SMTP MAIL FROM
| commands. This applies to batch as well as normal SMTP input, unless
| sender_verify_batch is set false.
|
| The check is performed by running the same verification code as is used then
| Exim is called with the -bv option. The check is performed when the MAIL FROM
| command is received. If the address cannot immediately be verified (typically
| because of DNS timeouts), a temporary failure error response (code 451) is
| given to the MAIL FROM command, unless sender_try_verify is set, in which case
| the message is accepted with a warning message.
This doesn't work if you have a major relay defined which gets all your
outgoing mail.
Because of "running the same verification code as is used when Exim is
called with the -bv option" the verification always finds a route back
to the - possible invalid - sender domain and accepts the message.
Is it a bug or feature ? How to solve the problem ?
Regards _______________________________________________________________
Frank Elsner / c/o Technische Universitaet Berlin |
____________/ ZRZ, Sekr. E-N 50 |
| Einsteinufer 17 |
|Voice: +49 30 314 23897 D-10587 Berlin |
|SMTP : Elsner@??? Germany |
|X400 : /S=Elsner/OU=zrz/P=TU-Berlin/A=d400/C=de/ _________________|
|____________________________________________________________| Ich habe fertig
--
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