On dinsdag, apr 29, 2003, at 11:24 Europe/Amsterdam, Aaron Stone wrote:
How much more involved an SMTP server are you thinking vs. LMTP? As I
discovered while researching the LMTP protocol, it is literally just
SMTP
with mandatory pipelining, highly recommended 8bit and chunking and
forbidden to use port 25 or operate over any wan links...
In fact, I'd bet that adding a 'case EHLO:' right before the 'case
LHLO:'
in the alpha LMTP daemon I posted would do the trick!
Yeah, it would be quite easy. First setup would be to implement a
minimal smtp (no relaying, just delivery).
How far are you on the LMTP? Would it be worth it for me to start on
the SMTPd?
BTW - Did you guys just hack up a simple SMTP daemon, or work with
enough
structure to run into the insert_messages() limitations which I'm
currently working to address with the pipe.c rewrites? I'd be
interested
to hear your impressions on increasing the flexibility of that code...
Roel created an smtp server (very minimal) quite a while ago. I've no
idea how he went about it. I'm also not sure if it is in CVS or on his
laptop :)
You shouldn't use insert_messages. The database 'drivers' have specific
ways to insert messages (look for insert in those files).
Best regards,
Eelco
Aaron
On Mon, 28 Apr 2003, Eelco van Beek wrote:
Hi all,
I was thinking about building a dedicated smtp server for dbmail. This
will not be a full smtp server implementation (no relaying and stuff
like that) but pureley an smtp reception daemon. This has the
following
advantages:
• much higher mail reception throughput
• direct bounces if needed
• direct checks against aliases table
• no depedencies of other smtp's
It will coexist next to an LMTP implementation. They both will service
different needs.
We've tested a very very very minimal version of an smtp server. It
was
able to process about 70 mailmessages per second. That about 10 times
as many as the current situation can handle.
Furthermore, Roel and i were brainstorming about speeding up the imap
server. Our goal is to make it 5 - 10 times faster as it is now. Also
we want to implement shared folders. For both changes we'll need to
make changes to the database layout. We have some plans about this
that
we'll reveal soon.
Best regards,
Eelco
_________________________
E.J.A. van Beek
ICT Manager
IC&S
T: +31 30 2322878
F: +31 30 2322305
PGP-key:
www.ic-s.nl/keys/eelco.txt
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_________________________
E.J.A. van Beek
ICT Manager
IC&S
T: +31 30 2322878
F: +31 30 2322305
PGP-key:
www.ic-s.nl/keys/eelco.txt
