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sender address verification

hi all

little question:

how does the smtp proxy a sender address verification?
how does it verify if an e-mail address is real or faked?

thanx in advance

eldorado

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0 eldorado over 21 years ago

hi QVICIO

o.k. I've read the help. my question was more a technical one. I ask this because of the mail servers wich don't allow an RCPT command check.

and does asl quarantine this e-mails with no sender address or reject them?

thanx for answering
eldorado
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0 eldorado over 21 years ago

hi QVICIO

o.k. I've read the help. my question was more a technical one. I ask this because of the mail servers wich don't allow an RCPT command check.

and does asl quarantine this e-mails with no sender address or reject them?

thanx for answering
eldorado
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0 Simon Shaw over 21 years ago in reply to eldorado

Sender address verification can be dangerous, lot of false positives. I forget if it quarantines or not, I think it rejects...
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0 thtran over 21 years ago in reply to Simon Shaw

Hi.

We're using callouts. If the sender verify callout fails, the incoming mails are rejected!

Often, verification fails because of a timeout. Does anyone know how to increase the timeout limit?

Regards, thtran.
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0 Arvid over 21 years ago in reply to eldorado
I believe this is what is sent:
Code:
HELO
MAIL FROM:<>
RCPT TO:
QUIT
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