Yes dovecot, /etc/dovecot/conf.d/20-lmtp.conf ;)
service lmtp {
chroot client_limit = 1
drop_priv_before_exec = no
executable = lmtp
extra_groups = $default_internal_group
group idle_kill = 0
inet_listener lmtp {
address haproxy = no
port = 24
reuse_port = no
ssl = no
}
privileged_group process_limit = 0
process_min_avail = 0
protocol = lmtp
service_count = 0
type unix_listener lmtp {
group mode = 0666
user }
user vsz_limit = 18446744073709551615 B
}
-----Original Message-----
To: dovecot at dovecot.org
Subject: Lightweight LMTP daemon to avoid overkill MTA
Hi,
My situation is as follows.
-An internet-facing spam filter relays email to destination mail server
(Dovecot) with SMTP.
- Dovecot should take email and deliver it to user's mailboxes. I guess
I'd need LMTP for this.
- An external SMTP relay is already in place. I am thinking of using
Dovecot submission to relay to the external relaying cluster.
So, both relaying and routing are done externally - the Dovecot machine
should only store mail. Of course, there should also be a mechanism that
takes care of local delivery to Dovecot, like LMTP. Usually, I would use
an MTA like Exim to take care of local delivery. I feel like a
fully-featured MTA is overkill, though, as all other roles such an MTA
would fulfill - relaying and spam filtering - are fulfilled on external
servers.
Q: Does anyone know of a lightweight LMTP daemon that can take care of
local delivery to Dovecot without the need for a full MTA?
With kind regards,
William Edwards
T. 040 - 711 44 96
E. wedwards at cyberfusion.nl
<https://cyberfusion.nl/img/CF-Logo-liggend-RGB.png>
Hi, My situation is as follows. -An internet-facing spam filter relays email to destination mail server (Dovecot) with SMTP. - Dovecot should take email and deliver it to user's mailboxes. I guess I'd need LMTP for this. - An external SMTP relay is already in place. I am thinking of using Dovecot submission to relay to the external relaying cluster. So, both relaying and routing are done externally - the Dovecot machine should only store mail. Of course, there should also be a mechanism that takes care of local delivery to Dovecot, like LMTP. Usually, I would use an MTA like Exim to take care of local delivery. I feel like a fully-featured MTA is overkill, though, as all other roles such an MTA would fulfill - relaying and spam filtering - are fulfilled on external servers. Q: Does anyone know of a lightweight LMTP daemon that can take care of local delivery to Dovecot without the need for a full MTA? With kind regards, William Edwards T. 040 - 711 44 96 E. wedwards at cyberfusion.nl ? -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20191211/5e00f208/attachment.html>
Atomia
2019-Dec-11 17:55 UTC
Ticket Received - [#22078] Lightweight LMTP daemon to avoid overkill MTA
Hi Claudio Corvino via dovecot, We have received your request and a ticket
has been created with Ticket ID - 22078. A support representative will be
reviewing your request and will contact you shortly.
To view the status of the ticket or add comments, please visit?
https://support.atomia.com/helpdesk/tickets/22078
Speak to you soon,
Atomia Support Team
-------------- next part --------------
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Hi,
I was unclear in my question. The spam filter is only able to deliver mail over
SMTP, not over LMTP.. So I would still need some kind of daemon that listens for
SMTP and then offers incoming email to Dovecot's LMTP socket.
Met vriendelijke groeten,
William Edwards
T. 040 - 711 44 96
E. wedwards at cyberfusion.nl
?
----- Original Message -----
From: Marc Roos (M.Roos at f1-outsourcing.eu)
Date: 12/11/19 18:59
To: dovecot (dovecot at dovecot.org), wedwards (wedwards at cyberfusion.nl)
Subject: RE: Lightweight LMTP daemon to avoid overkill MTA
Yes dovecot, /etc/dovecot/conf.d/20-lmtp.conf ;)
service lmtp {
chroot client_limit = 1
drop_priv_before_exec = no
executable = lmtp
extra_groups = $default_internal_group
group idle_kill = 0
inet_listener lmtp {
address haproxy = no
port = 24
reuse_port = no
ssl = no
}
privileged_group process_limit = 0
process_min_avail = 0
protocol = lmtp
service_count = 0
type unix_listener lmtp {
group mode = 0666
user }
user vsz_limit = 18446744073709551615 B
}
-----Original Message-----
To: dovecot at dovecot.org
Subject: Lightweight LMTP daemon to avoid overkill MTA
Hi,
My situation is as follows.
-An internet-facing spam filter relays email to destination mail server
(Dovecot) with SMTP.
- Dovecot should take email and deliver it to user's mailboxes. I guess
I'd need LMTP for this.
- An external SMTP relay is already in place. I am thinking of using
Dovecot submission to relay to the external relaying cluster.
So, both relaying and routing are done externally - the Dovecot machine
should only store mail. Of course, there should also be a mechanism that
takes care of local delivery to Dovecot, like LMTP. Usually, I would use
an MTA like Exim to take care of local delivery. I feel like a
fully-featured MTA is overkill, though, as all other roles such an MTA
would fulfill - relaying and spam filtering - are fulfilled on external
servers.
Q: Does anyone know of a lightweight LMTP daemon that can take care of
local delivery to Dovecot without the need for a full MTA?
With kind regards,
William Edwards
T. 040 - 711 44 96
E. wedwards at cyberfusion.nl
<https://cyberfusion.nl/img/CF-Logo-liggend-RGB.png>