Questions tagged [postfix]
Postfix is a free and open-source mail transfer agent (also "MTA"), written in 1997 and still actively developed.
481
questions
0
votes
0
answers
7
views
Postfix/Dovecot: mail queue is empty, but emails still don't get delivered until the server is rebooted
I am running an Ubuntu 22.04 server with Postfix, Dovecot, Amavis, and SpamAssassin. A couple months ago, I noticed I hadn't gotten emails from the server in about a month. I sshed in and ran mailq ...
- 131
0
votes
1
answer
49
views
My emails are seen as spam by Gmail
I have a email server with postfix, dovecot, spamassassin, etc.
www.mail-tester.com gives me 10/10.
www.spamscore.net complains about the spf (SPF record SOFTFAIL) and reverse DNS: I have neither ...
- 11
0
votes
0
answers
34
views
How to solve the SPF record SOFTFAIL with postfix?
I'm trying to get my email server up and running. www.mail-tester.com gives me a score of 10 out of 10, but the problem is a SPF record SOFTFAIL.
My SPF record is:
v=spf1 mx ~all
In my /etc/postfix/...
- 11
0
votes
0
answers
46
views
How to send emails without outgoing port 25 with Plesk and postfix?
I have a VPS server running Plesk with postfix and my IP is blocking outgoing port 25. Do you know how to set up my server to send emails from it? Can't some other ports be used for this?
I managed to ...
- 1
0
votes
1
answer
28
views
How do I have more than one database for SASL authentication in Postfix?
I currently have Postfix set up to authenticate submission with SASL. The database connection info is stored in /etc/postfix/sasl/smtpd.conf
However, I cannot for the life of me figure out how to have ...
0
votes
1
answer
227
views
Postfix Email Server Cannot Send Mail to icloud.com Accounts
I have a nearly fully-functional email server which plays nice with itself, gmail, protonmail, hotmail, yahoo, aol, [a college], [a smaller company], and AT&T.
The problem is icloud.com:
May 1 02:...
0
votes
0
answers
23
views
Virtualmin configuration error after updates
I updated my VPS which I administer with Virtualmin, it runs Ubuntu 20.0.4.6
When rechecking the configuration, it stops at:
A problem was found with your Postfix virtual maps :
The map source mysql:/...
- 1
0
votes
0
answers
16
views
Sending Mail error postfix fork_execv_pipes error 11
I have an ubuntu Server with plesk. There is postfix hosted for mail Service.
Whenn a Mail to all internal users is send I got this error:
>: Command died with status
1: "/usr/lib/plesk-9.0/...
- 131
0
votes
0
answers
47
views
Postfix content filter skip if failing
we have the postfix MTA which is working as relay SMTP service with the content-filter configuration. Content filter service analyzing emails end sending back to the Postfix. Some times content filter ...
- 1
1
vote
1
answer
61
views
Is situation (with GPG) possibly a malware attack?
I am taking care of an ubuntu server (22.04) and suddenly I was not able to access some files via FTP. I checked a few things and noticed a gpg root process consuming a lot of CPU. It kept restarting ...
- 121
1
vote
0
answers
53
views
Debian server getting spammed through
This server has been live for many years, however, recently it is under attack by spam.
I have not been able to plug the hole they are using. It seems that the spam is using the sasl_username=clamav.
...
- 11
1
vote
0
answers
24
views
Escaping @ characters in /etc/postfix/virtual not working for 'reject_sender_login_mismatch'
TLDR; Only if I remove the backslash characters in my mapping, I can use the reject_sender_login_mismatch functionality...
I need to escape some @ characters in my /etc/postfix/virtual mapping because ...
- 11
0
votes
0
answers
141
views
Postfix 'reject_sender_login_mismatch' ALWAYS rejecting
I have a new fresh Virtualmin setup with Postfix as my mailserver. But on this server, I can't send emails because it is always blocked because: 'Sender address rejected: not owned by user test@domain....
- 11
0
votes
0
answers
87
views
Serve SSL certificate directly from PostFix / Dovecot to Thunderbird WITHOUT webserver
Webserver host: web.example.nl
Mailserver host: mail.example.nl
Mail user: test@user.nl (letsencrypt cert issued for this domain)
I am trying to setup a new mailserver on mail.example.nl that doesn't ...
- 11
0
votes
0
answers
102
views
Postfix not sending emails outside
so I'm trying to run a postfix app on my raspberry pi 4 following this tutorial: https://raspberrytips.com/mail-server-raspberry-pi/ But when I try to use telnet to send an email to an external mail, ...
- 1
0
votes
0
answers
813
views
Postfix - SASL PLAIN authentication failed: Connection lost to authentication server
I set up an email server using Cyberpanel (which uses dovecot + postfix internally). I have some ticketing software hooked up to the email server that bulk sends emails (currently trying to send ...
- 1
1
vote
1
answer
346
views
How to forward and change the origin of a message via Dovecot Sieve script
I want to forward an incoming mail to another recipient. However, the recipient is only accepting mails from my email address. Is it possible to forward a mail and change the sender via Sieve? The ...
- 111
0
votes
0
answers
183
views
Issue with Postfix Dovecot on Debian 11
I try to configure mail server on my debian
No issue with connection, i can connect (from Thunderbird) to my mail server but can't send or receive any message
I try a lot of differents settings...
...
- 1
0
votes
1
answer
225
views
Postfixadmin sending of e-mail fails with an error
I recently installed a mail server on a Debian with postfix/dovecot with postfixadmin to manage virtual users but when sending a mail to users it doesn't reach the destination and the logs return me ...
0
votes
0
answers
26
views
Nagios e-mail notification
I recently installed nagios on my Debian server to be able to monitor some machines on the network but when I send the e-mail notification to the administrator I don’t receive the mail.
I set up the ...
0
votes
0
answers
256
views
Postfix 3.6.2-1 on CentOS 7: 554 5.7.1 Relay access denied
I'm trying to set up a postfix 3.6.2-1 server on CentOS 7 that I don't have physical access to (have sudo, but upgrading everything is not an option) and needs client & relay clearance from my ...
- 101
0
votes
1
answer
606
views
550 5.1.1 <user@mail.midomain.com> User doesn't exist: user@mail.midomain.com (in reply to RCPT TO command))
this is just killing me I really need fix it, well I'm setting up a Postfix Dovecot Sasl server in Gentoo with a FQDN for my personal domain and till now I can't surpass this
May 27 21:11:05 mail ...
- 149
0
votes
0
answers
444
views
System mail not being forwarded via /etc/aliases
I have a server set up and I'd like to have any mail sent to the root system mailbox auto-forwarded to my email address.
Following instructions found via google, I've added this line to /etc/aliases:
...
- 101
0
votes
2
answers
538
views
Why can't I get Postfix to deliver mail to Dovecot?
master cf
main.cf
I'm having trouble configuring Postfix to receive email on vpn.vietfeir.com. The links above are to the master.cf and main.cf configuration files.
I can send mail
Port 587 is open ...
- 129
0
votes
1
answer
105
views
How am I supposed to set up Evolution for local email sending using Postfix?
I want to be able to use Postfix and Evolution to send email between users of my laptop!
I have Postfix set up as a Local Only mail server, and have the domain named as penguin.local.
Is there a way ...
- 158
-1
votes
1
answer
860
views
How to get Postfix and Dovecot working with an existing Kerberos realm?
I now have a Kerberos realm like MYDOMAIN.CH, an admin server and a principal of root/admin, as well as the realm master password and the root/admin principal password. Now I want to get Kerberos ...
1
vote
1
answer
1k
views
Outgoing emails are not signing with DKIM
I have set up Postfix and OpenDKIM and I am trying to get outgoing emails signed by DKIM so that providers won't mark it as spam.
However, even if I believe I set up the signing properly, none of the ...
user1678307
1
vote
0
answers
12
views
Two-piece mail server, working out sender_login and verified_recipient validation
TL:DR I'm trying to figure out how to get one postfix server to ask another whether a incoming email's recipient address is valid, or if an outgoing email's sender address is a valid email/alias for ...
- 154
1
vote
0
answers
553
views
Is it possible to have a custom photo/profile picture on a Postfix mail server?
Something like the example pictured below would be what I am looking for (the little cup of coffee to the left of the sender name and email) I couldn't find any information anywhere, ideally id like ...
- 11
0
votes
1
answer
110
views
unauthorized access to dovecot services
Recently i was enable mail-relay to 3rd party tool, suddenly i found 1000 of emails are going as a spam everyday to unknown users i disable the mail-relay ,but still we facing some one login our ...
- 1
0
votes
1
answer
541
views
Mail from Postfix not in "Sent" folder
When I send an e-mail from my local computer from Thunderbird, all my e-mails show up in the "Sent" folder on the Fastmail website. But when I send an email from Postfix from my Ubuntu ...
- 1
1
vote
1
answer
496
views
Postfix and Dovecot Virtual Mailboxes
I have been setting up a home mail server on my Raspberry Pi using Dovecot and Postfix. This is all very new to me, and I've struggled my way through.
Now I'm on to trying to setup virtual mailboxes, ...
1
vote
0
answers
162
views
postfix/dovecot on ubuntu Thunderbird client can't save messages to sent folder
My problem is that TB can't save messages to the Sent folder In users home directories there are mail folders which in turn have Maildir folders so the actual mail directory for users is mail/Maildir ...
- 11
1
vote
2
answers
1k
views
How to create subfolder on mailbox trough Dovecot
On a CentOS 7 machine running Postfix and Dovecot how would one create subfolder named 'Bulk' in a inbox? Like 'INBOX.Bulk'.
I thought to use the maildirmake command but this returns "maildirmake ...
- 13
0
votes
1
answer
15
views
All Postfix configurations with file expansion
Postfix in Debian has some ways to set a configuration, like:
myorigin = "foo"
myorigin = $myhostname
myorigin = /etc/mailname
See that myorigin supports both a string and a file.
In the ...
- 139
0
votes
1
answer
100
views
Thunderbird/email server slow when firewall is up
In short, I'm running Postfix and Dovecot on a server and everything is working. The issue is that when sending mail with the firewall up, Thunderbird hangs for about 10 seconds before sending a ...
- 101
0
votes
1
answer
76
views
How to make Postfix ignore leading whitespace in virtual alias table format?
The virtual alias table format of Postfix gives special meaning to leading whitespace under certain conditions:
multi-line text
A logical line starts with non-whitespace text. A line that
...
1
vote
1
answer
2k
views
Postfix not sending to gmail [added spf & dkim]
Hello i've been struggling for a while now. I will give all the details i can.
OS: Ubuntu 20.04
Server: DigitalOcean (Droplet)
Domain Registrar: Namecheap
I hope i did not change up somethings with ...
- 11
0
votes
0
answers
435
views
Postfix: inbound and outbound relay with store and forward - advice needed
My ISP blocks port 25, so I'd like to setup a store and forward inbound and outbound postfix server (relay-server) that communicates with a mailstore server (mailstore-server), which is unable to ...
0
votes
0
answers
75
views
Postfix don't send mail to external domain
Hi my postfix server can send and receive mail only from my local domain.
root@vps-9c0d7878:/# root@vps-9c0d7878:/# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
...
1
vote
0
answers
74
views
Configure postfix for external SMTP
I have a PC at home with Manjaro, connected to the internet through a MODEM that an "internet service provider" has installed for me, from which optical fiber goes out to the world.
My ...
- 11
1
vote
1
answer
3k
views
Difference between SMTPd and SMTP
Hi can someone tell me what is the difference between the SMTPd and SMTP ?? i found that smtp is Postfix SMTP client and smtpd is Postfix SMTP server is this real ??? I found other
information :
...
1
vote
0
answers
367
views
header_checks is applied to mail body (CentOS 7 + Postfix 2.10.1)
I have received SPAM e-mail, added regular expression to header_checks about it and when tried to forward SPAM e-mail as attachment, then this check triggered and rejected my forwarded e-mail.
Regexp ...
- 287
0
votes
1
answer
489
views
Postfix access and subdomains?
I am trying to include in my /etc/postfix/access some domains from known spammers I would like to block (please no discussion if this is useful or not....).
Accordings to the documentation it should ...
1
vote
2
answers
135
views
Prevent use of procmailrc by some users
We have an e-mail server running Postfix (SMTP) and Dovecot (POP/IMAP) on Debian 10. Users cannot log directly on it (SSH), but have access to their homes through NFS.
We would like to use Procmail to ...
0
votes
2
answers
506
views
FInding 'server log' referred to in this postfix error
This is a bit embarassing, but I'm stuck at the first step of debugging a postfix+dovecot setup on Debian after following this guide.
Sending email from my server works, but receiving doesn't. I get ...
- 61
1
vote
0
answers
595
views
Postfix non privileged docker image
We are trying to create a docker image for postfix similar to this one here. Later we want to use it as part of a kubernetes deployment. Therefore the container needs to run as a non-root user (...
- 11
1
vote
1
answer
290
views
Unclear about postfix and hostname in ubuntu
I need to preface this by saying I am in no means an expert with linux or servers. I have a digitalocean droplet that I am using as a webserver for a couple of domains. I am looking to implement a ...
- 113
3
votes
1
answer
603
views
Postfix: Allow sending only from virtual users used by dovecot
So I have set up my postfix server with dovecot according to this tutorial. Receiving emails works fine, sending them too. But these days I had the problem that my postfix started sending emails from ...
- 131
0
votes
0
answers
1k
views
Not receiving emails (no bounced errors) but can send out emails - Postfix, Dovecot, Webmin/Virtualmin
I'm using CentOS with Postfix, Dovecot, Webmin/Virtualmin. I can't seem to receive emails for all addresses for one of our virtual servers configured via Webmin/Virtualmin. But I can send out (and it ...
