Questions tagged [opensmtpd]

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Mysterious/Unknown IPs keep getting whitelisted by spamd

I have an OpenBSD 7.1 mail server running OpenSMTPD with spamd. I notice mysterious IP addresses in /var/log/maillog, such as: smtp connected address=162.142.125.222 host=scanner-25.ch1.censys-scanner....
0 votes
0 answers
131 views

smtp: SSL_CTX_load_verify_locations: No such file or directory

Debian GNU/Linux 11.4 (bullseye), Linux 5.10.0-17-amd64 Installed OpenSMTPD 6.8.0p2-3 amd64 (including opensmtpd-extras 6.7.1-2 amd64) and tried to test sending a mail, but every smtp call (except ...
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1 vote
0 answers
368 views

Personal OpenSMTPd relay fails when using "tls-require", works fine with just "tls"

I'm currently setting up a somewhat unique personal email server using OpenSMTPd. I have a local server (Raspberry Pi) and a remote server (VPS). Emails sent to me are sent to the remote server and ...
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1 vote
0 answers
243 views

How to add a catchall address to opensmtpd without disrupting existing aliases

I have a working OpenSMTPD configuration that I am happy with. I do not have a virtuser file and I do not reference "domain_mail" or virtual anywhere in my config file, which is here: table ...
1 vote
1 answer
334 views

Added dkimproxy to OpenSMTPD ... mail loop when sending to my own domain

I have a nicely working OpenSMTPD configuration and I added dkimproxy to it. Everything is working nicely and mail-tester, etc., all report that I have proper DKIM signing and my email score is 10/10, ...
0 votes
0 answers
91 views

Error in config, reported only as syntax error

I have a simple config (based on googling and copy paste) that contains an error, I don't know how to proceed. I would like to forward all mails received to an smtp-server that requires username+...
  • 125
0 votes
1 answer
314 views

Opensmtpd can relay mail from a list to any domain?

My company briefly like this I have 1500 IP addresses SMTP source and Exchange 2016 (Behind KEMP LB) Due to LB topology, my anonymous SMTP relay receive connector scopes store on Exchange server. Now ...
1 vote
1 answer
575 views

LDAP+SSL configuration with OpenSMTPD

I have a working setup with OpenSMTPD 6.6.4 (hosted on a debian 10) that is plugged on a OpenLDAP 2.4.50 server (hosted on a Alpine 3.8), based on this blogpost. It works with plain LDAP connection, ...
  • 165
0 votes
1 answer
755 views

Can OpenSMTPD relay mail from a whitelisted IP?

I am running opensmtpd and all is well. Of course I do not run an open relay and I tightly control how mail is sent through the mailserver. However, my personal mailtool runs on a different virtual ...
1 vote
1 answer
578 views

Dovecot LMTP rejecting mail from address with apostrophe

I have an OpenSMTPD / Dovecot installation on an OpenBSD server. I recently came across an issue where Dovecot LMTP would reject a message sent to a local user from an address which contains a single ...
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0 votes
1 answer
1k views

OpenSMTPd: Block sender based on "Received" domain

For OpenSMTPd, I would like to block a server from sending me mail based on the domain name of that server. It has a large number of IP addresses all over the place and blocking each individual one is ...
2 votes
0 answers
305 views

How is an SMTP-Client supposed to behave if he receives an Error from the Server?

Consider the following SMTP-Session: 220 mx.example.com ESMTP Postfix EHLO example.com 250-mx.example.com 250-PIPELINING 250-SIZE 10240000 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME ...
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3 votes
0 answers
412 views

Multiple relays with OpenSMTPd

We use mailhog in development / testing and hook it up to postfix. It so that if you mail to an email address ending in .external, it will be relayed to a real server. And, if doesn't we relay it to ...
  • 131
0 votes
1 answer
558 views

How to hide/remove original source IP address when using OpenSMTPD?

I'm trying to figure out how to remove/hide the originating source IP address of every mail being sent using OpenSMTPD? To do the equivalent in postfix, it would be: http://integer13.wordpress.com/...
  • 137
3 votes
1 answer
839 views

Avoiding unnecessary bounces with OpenSMTPD on OpenBSD

I am running OpenSMTPD on OpenBSD together with spamd, spampd and spamassassin, DKIMproxy and dovecot. My setup is to handle both local e-mail on the server and (external) email for my domain. My ...
1 vote
0 answers
34 views

How I can look from that script runs sendmail? [duplicate]

my problem is that some script in php or some other script or program is sending spam. I am not able to trace where this program runs. do the following: ps aux | grep sendmail nginx 28286 0.0 ...
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3 votes
1 answer
263 views

amavisd-new rescans quarantined mails

iam using Opensmtpd on a 14.04.4 LTS Ubuntu with amavisd-new as Mailscanner. We configured the quarantine so it sends the Virus-Mails to an external mailbox. This works fine until the point amavis has ...
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3 votes
1 answer
2k views

What's the proper way to get smtpd (OpenSMTPD) to pick up changes to smtpd.conf?

I'm new to OpenBSD and in the process of learning OpenSMTPD. I would have expected some sort of "restart" option from the smtpctl command, but it only has a stop with no start which might force a ...
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