Vacation Message - request for comment on implementation

9 msg	Maximum length of a header line?
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13 msg	Message size limit per user
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Vacation Message - request for comment on imple...
\ Charles Marcus (24 Jul 2007)
. \ mouss (24 Jul 2007)

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Subject:	Vacation Message - request for comment on implementation
Group:	Postfix-users
From:	Charles Marcus
Date:	24 Jul 2007

Hello,

I know that most people on this list hate vacation/auto-responder type
messages, but I also know that the same people care even more about them
working properly when they are used.

With that in mind, I'd like comments (criticism, suggestions to make it
better behaved) on the one that works with dovecot. From the wiki
(http://tinyurl.com/2lxwr8):

****************************************

Vacation auto-reply

The vacation replies are sent to the envelope sender. Currently this is
taken from the Return-Path: header in the message.

List of autoreplied senders is stored in .dovecot.lda-dupes file in
user's home directory. When you're testing the vacation feature, it's
easy to forget that the reply is sent only once in the number of
configured days. If you've problems getting the vacation reply, try
deleting this file. If that didn't help, make sure the problem isn't
related to sending mails in general by trying the "reject" Sieve command.

The automatic replies aren't sent if any of the following is true:

* Auto-Submitted: header exists with any value except "no"
* Precedence: header exists with value "junk", "bulk" or "list"
* The envelope sender
o begins with "MAILER-DAEMON" (case-insensitive)
o begins with "LISTSERV" (case-insensitive)
o begins with "majordomo" (case-insensitive)
o begins with "owner-" (case-sensitive)
o contains the string "-request" anywhere within it
(case-sensitive)
* The envelope sender and envelope recipient are the same
* The envelope recipient is not found in the message To:, Cc: or
Bcc: fields.

The envelope sender is taken from a Return-Path: header in the message.
The envelope recipient is taken from the recipient user (-d parameter
with virtual user setup). A bare username without a domain gets
canonicalised by the libsieve code to "<username>@unspecified-domain",
which means it is highly unlikely to pass the last two tests in the list
above.

*****************************************

--

Thanks,

Charles