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Re: MTA advice ??
- To: Jeffrey Goldberg <jeffrey_(_at_)_goldmark_(_dot_)_org>
- Subject: Re: MTA advice ??
- From: Matthew Seaman <m_(_dot_)_seaman_(_at_)_infracaninophile_(_dot_)_co_(_dot_)_uk>
- Date: Mon, 25 Aug 2008 06:49:56 +0100
- Cc: pete <bsdpete_(_at_)_thechristies_(_dot_)_net>, freebsd-questions_(_at_)_freebsd_(_dot_)_org
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- Organization: Infracaninophile
Jeffrey Goldberg wrote:
Receiving mail directly will be more possible, but tricky. You will
need to use a dynamic DNS system. Also do consider uptime and
reliability. In the old days, if one MTA couldn't reach another it
would hold stuff in its queue for four or five days. Now, most MTAs
appear to be configured to give up after 24 hours. So if your
mailserver is down for a day, mail will be bounced and never delivered
to you.
In which case those mail systems are not in compliance with the RFCs.
RFC 2821 Section 4.5.4.1 says:
Retries continue until the message is transmitted or the sender gives
up; the give-up time generally needs to be at least 4-5 days. The
parameters to the retry algorithm MUST be configurable.
ie. 4-5 days is the /minimum/ time to hold messages in the queue and
keep retrying.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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