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[fetchmail] Re: Multidrop Bounce

2003-03-24 04:42:45
Maarten Bezemer writes:
Hi, On Mon, 24 Mar 2003, Ben Clewett wrote:
I really need email to bounce, as I am in competition with some MS products with do bounce. (Probably when they should not, but hay...) I'm looking at the code to see if I can easily hack it, and wonder if anybody could give me some advice... (Sorry about English, I is very dyslexic)

Did you look at bSMTP? In 'professional' setups fetchmail may not always
be what you want. When MS products are in the competition there should be
no problems with money, so having the mail delivered through bSMTP instead
of one 'cheap' pop-box shouldn't be a problem. If you run your own SMTP
server, it can generate the bounces for you.
Having your SMTP listener do the bounces does however not _require_
bSMTP. You can also have fetchmail forward everything to your local SMTP
listener and configure that listener to accept everything and send out
bounce mails for undeliverable adresses. (That is: do not send 550
responses to fetchmail but accept first and bounce later).
This does require some tweaks in your SMTP listener configuration, but it
is not impossible. Depending on the mailer, it may even be quite simple.
Simply placing a "dumb" smarthost between fetchmail and your own real smtp server will probably be enough, and may also help increase security. The dumb smarthost accepts everything (though respects anti-relaying rules) and messages are only bounced when the dumb smarthost tries to deliver the message to your real SMTP server. I do this using "free" software without any tweaks.
--
Bill Michell
bill(_at_)mics(_dot_)org(_dot_)uk