[CentOS] question on sending mail with 5.2
Luke S Crawford
lsc at prgmr.com
Sat Sep 13 01:49:42 UTC 2008
Jerry Geis <geisj at pagestation.com> writes:
> In the event I have an important email and I want it try perhaps every
> minute (1minute)
> to send the email how do I accomplish this from the sendmail command line?
considering just how many people use greylisting, this is likely a
bad idea. Greylisting works by rejecting the first message from a new
server with a 4xx (temporary) error code. If the server tries again
immediately or never tries again, it's probably a spammer. If the server
waits a reasonable period of time (say, 30 minutes) and then re-sends the
mail, it's probably legit, and the greylist program puts that server on the
whitelist so mail from that server goes through right away next time.
Many people set things up such that if you try again immediately, you get
put on a blacklist, as you are probably a spammer.
(that said, the answer to your question is what you did with -q1m But
you probably don't want to do it.)
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