I've been experimenting with the greylisting plugin a bit lately, and
I've noticed some odd behavior.
It seems that mail for domains that aren't in rcpthosts that would
normally get a 5xx message and get rejected are hitting the greylisting.
As a result, they get a 4xx rejection first, and then after the
transition from grey to white, they get a 5xx. I've included log lines
and transcripts below. I'm wondering is this the intended behavior or
should this be counted as a bug?
-------- First attempt (Transcript)
220 mx3.maildev.net ESMTP qpsmtpd 0.40 ready; send us your mail, but not
your spam.
HELO test
250 mx3.maildev.net Hi [10.25.201.81] [10.25.201.81]; I am so happy to
meet you.
MAIL FROM:<[EMAIL PROTECTED]>
250 <[EMAIL PROTECTED]>, sender OK - how exciting to get mail from you!
RCPT TO:<[EMAIL PROTECTED]>
450 This mail is temporarily denied
QUIT
221 mx3.maildev.net closing connection. Have a wonderful day.
-------- First attempt (Log)
greylisting plugin: key
10.25.201.81:[EMAIL PROTECTED]:[EMAIL PROTECTED] initial DENYSOFT, unknown
-------- Second attempt (Transcript)
220 mx3.maildev.net ESMTP qpsmtpd 0.40 ready; send us your mail, but not
your spam.
HELO test
250 mx3.maildev.net Hi [10.25.201.81] [10.25.201.81]; I am so happy to
meet you.
MAIL FROM:<[EMAIL PROTECTED]>
250 <[EMAIL PROTECTED]>, sender OK - how exciting to get mail from you!
RCPT TO:<[EMAIL PROTECTED]>
550 Relaying denied (#5.7.1)
QUIT
221 mx3.maildev.net closing connection. Have a wonderful day.
-------- Second attempt (Log)
greylisting plugin: key
10.25.201.81:[EMAIL PROTECTED]:[EMAIL PROTECTED] updated grey->white
