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Questions tagged [smtpd]

62 questions
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3 answers

use two different configs in one postfix, is it possible?

I'm wondering if is it possible to specify another main.cf for the configuration of smptd service in another port paired with normal config in standard port. I know that is it possible to override main.cf settings in master.cf using the -o…
theist
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6 answers

SMTP server takes 30+ seconds to accept a message, how to make it faster?

One of our SMTP servers is slow accepting emails, here is the typical output (response time 30+ seconds) from a smtp client script: 2014-02-26 11:44:11 +0800 BEGIN 2014-02-26 11:44:11 +0800 LOGGED IN 2014-02-26 11:44:11 +0800 BEFORE SEND 2014-02-26…
ohho
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2 answers

Postfix rejects mails if policyd is not reachable

I got a postfwd daemon running and it does a great job. smtpd_recipient_restrictions = [...] check_policy_service inet:192.168.10.7:10040 But if this server (192.168.10.7) isn't reachable, postfix rejects all mails with server…
noqqe
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1 answer

Postfix - Discarding EHLO Keywords Duplicate Log Entries

Ubuntu 20.04 Postfix 3.4 For each message received by my Postfix I see the following two entries: Mar 8 16:34:42 mail postfix/smtpd[863775]: discarding EHLO keywords: ETRN DSN Mar 8 16:34:42 mail postfix/smtpd[863775]: discarding EHLO keywords:…
user1801810
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1 answer

How to get postfix to check all 'Recieved:' headers against an RBL?

I have several rbls listed in smtpd_client_restrictions, but this only checks the client IP against the RBLS. Is there any way to get postfix to check each Recieved: line against the RBL like spamassassin does? Spamassassin tags blacklisted IPs in…
nyet
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1 answer

Postfix: define a global concurrency_limit

I need to limit the simultaneous outgoing connections Postfix can make. It is possible to limit the number of connection per destination with transport_destination_concurrency_limit, but not globally (or at least I didn't understand how). For spam…
Maxxer
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0 answers

Postfix seems slow, no load, no idea -.-

Our new postfix server we set up just for our weekly newsletter seems very slow, it takes more than double the time our old server at 1&1 did. The last days i tried to figure out whats wrong, following this guide as much as i…
Libertas
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vote
2 answers

postfix allow localhost only local users

I have a little problem. I am offering some clients access to my server in order to execute own scripts (of course in their own chroot environment, etc...). The problem which occured today: Some people gain telnet access to localhost on port 25 and…
Bene
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Postfix logs to remote log host

On my Ubuntu 14.04 server, I'm using Postfix as a front-end mailserver, and I would like to send all mail related info, including email addresses, to a remote host. In the file /etc/rsyslog.d/50-default.conf I have added the line: *.* …
user3771743
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1 answer

openDKIM breaks email forwarding

After moving our server over to Postfix, I have decided to implement DKIM using OpenDKIM. I have been successfully able to install and run this, but while it is enabled as a milter, all mail forwarding on the server becomes broken. For example, if I…
Joe
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1 answer

Postfix acting like an open relay for domain mailboxes

I have a mail server running on Debian 7.8 configured with postfix 2.9.6. My restrictions are these: smtpd_sender_restrictions = reject_sender_login_mismatch, reject_unknown_sender_domain, reject_non_fqdn_sender, reject_unlisted_sender,…
enne
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2 answers

How to scan mails with amavis from other mailserver

I have two postfix mail servers mailserver1 is running amavis to scan spam and virus mails mailserver2 is running without amavis. My question is how is the smartest way to use mailserver1 respectively amavis from mailserver1 to scan the mails form…
Ulli
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1 answer

Postfix refuses to send mail to some recipients

I got a third-party application running on localhost trying to send mails with postfix via smtp on the same machine. The problem is that postfix seems to refuse mails to some recipients: Content of /var/log/mail Sep 1 00:05:35 myhost…
ProfHase85
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2 answers

Postfix noqueue reject

I have own a vServer and multiple domains. The server is mainly used for Websites but I've also set up postfix and dovecot to deliver mail. Everything is working as expected. Even for different domains I am able to add user, alias and domain in a…
byf-ferdy
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1 answer

postfix welcome message smtpd_banner

I would like to greet the remote client showing his IP. For example: "mysite.com ESMTP Hello xxx.xxx.xxx.xxx your actions will be logged" I have this... smtpd_banner = $myhostname ESMTP Hello $client_address your actions will be logged But…
Martin Graws
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