Wade Curry wrote:
It's the part of qmail that does local delivery and forwarding. It
understands the dot-qmail files and allows users to add extension
addresses at will. It's the part of qmail that I like.
I used qmail from around 96 or so (basically when it first came out) all
the way up to around 2003 when I switched to postfix. I made extensive
use of extension addresses as well. When I made the switch to postfix
enabling extension addresses was the first thing I did. I have this in
my main.cf:
# ADDRESS EXTENSIONS (e.g., user+foo)
#
# The recipient_delimiter parameter specifies the separator between
# user names and address extensions (user+foo). See canonical(5),
# local(8), relocated(5) and virtual(5) for the effects this has on
# aliases, canonical, virtual, relocated and .forward file lookups.
# Basically, the software tries user+foo and .forward+foo before
# trying user and .forward.
#
recipient_delimiter = -
The examples given in the comment use + as the delimiter but you can see
I just set it to be - and it works just like qmail.
Other than dropping invalid SMTP sessions, qmail has done very well
for me for several years. It is long in the tooth, though. I hope
it sees some activity now that it is in the public domain
Unfortunately that seems unlikely. djb's idiotic license pretty much
doomed it from the beginning. I gave up on chasing all of the patches a
long time ago.
Even more than that, I'd like to see the whole e-mail paradigm change.
I think it's a tired, overworked abstraction. It seems to me that
the "it's just like mail, except electronic" encourages specific
kinds of abuses and faux pas. I don't think people will actually
let that go, though.
I agree completely.
In the meantime, my wife and kids use Linux only, and they all use
the mail server I set up. They know they can give unique addresses
on the fly, and they often do. In fact, my wife will create
addresses for /me/ on the fly if someone asks. She knows I can
always filter/bounce/whatever those e-mails later quite easily.
I make up unique addresses on the fly all the time. You are right in
that it does make i easy to filter spam caused by having given the address.
I don't mean that it couldn't be done effectively with postfix and
procmail. It's just that they understand this, and it gives them
some amount of control without requiring a lot of technical
knowledge. Makes a good fit, so I'm not inclined to toy with it.
It works exactly the same with postfix. No procmail is needed. They will
never know the difference.
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