All Questions
522
questions
-1
votes
0
answers
59
views
Postfix Mail being redirected to private inbox
I am relatively new to Linux, setting up servers and especially handling mail related things. I've bought a new domain and rented a VPS, which now hosts my website. I need a more open environment for ...
0
votes
0
answers
14
views
Multiple Postfix Instances *without* postmulti
I have been running multiple instances of certain services (php-fpm, mysqld, httpd) and am now trying to do the same with Postfix.
Searching online, I have so far only been able to find descriptions ...
0
votes
0
answers
37
views
Configure fail2ban to parse multiple log lines, e.g. Postfix mail rejects
I want to to block local authenticated mail users who generate spam, i.e. disable their SMTP access for a while as one of several countermeasures against hijacked accounts and malware.
To accomplish ...
- 149
-1
votes
0
answers
34
views
Postfix virtual mailboxes with only one single domain
I have read the Postfix documentation for virtual mailboxes but I can't find methods for my use case, with is shared domains, both UNIX and non-UNIX accounts, because I only have one domain. But ...
0
votes
0
answers
27
views
How to monitor users usage of GPG keys on company email server
I've been tasked to monitor our user's usage of PGP keys (ie: how many emails are sent/received using PGP). How can I go about doing this? We all use Ubuntu and the Thunderbird email client and ...
- 319
1
vote
0
answers
23
views
Postfix configuration to block spammer domain isn't working
I have an Ubuntu 22.04 cloud VM with Postfix 3.6.4-1ubuntu1.3 installed that I largely use for receiving e-mails sent to addresses at my personal domain that I provide when signing up for less-...
- 117
0
votes
1
answer
99
views
Saslauthd service not starting after upgrade to Ubuntu 24.04
I stuck with not starting saslauthd service after upgrade Ubuntu to 24.04 (it runs along with Virutalmin). So i can't authenticate to smtp (cant send mails, but still can recieve) due to error:
454 4....
- 1
0
votes
2
answers
57
views
Not able to connect to MySQL from postfix
opensource community
I am using Postfix, dovecot and Postfix Admin for my complete email setup
I am using virtual users so I have installed postfix-mysql and dovecot-mysql
Issue:
My postfix service is ...
0
votes
1
answer
41
views
(Postfix) set rate_delay for 2 sending domains to 1 receiving domain
Currently I own 2 sender domains aaa.com and bbb.com. The restriction is that:
Each domain can only send one email after another with a delay of 200 seconds.
Each domain can only send 100 emails ...
- 1
0
votes
0
answers
64
views
postfix MTA seemingly benign I/O Error : postqueue fatal: output write error: Input/output error
I am getting the following message in my syslog exactly every 30 seconds. Everything is working but words like "Fatal" and "Input/output error" cause me an inordinate amount of ...
- 21
0
votes
1
answer
186
views
Can't receive messages in inbox of Thunderbird with Postfix and Dovecot
I have dovecot and postfix installed and working properly. I send messages to the server with postfix and Dovecot from clientnorbert@clientnorbert-1-2, with the email clientnorbert@ubuntumailsystem ...
- 5
1
vote
1
answer
75
views
dovecot telnet localhost 143
I have problem with dovecot, when im trying telnet localhost 143 i got
root@ubuntuserver:/etc/dovecot# telnet localhost 143
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection ...
- 5
0
votes
1
answer
49
views
How to send email from smtp server1 to smtp server2 (Postfix) via client?
How to make server1 with postfix can send email to server2 with postfix by redirecting DNS query to it (type forward). These servers are on the same local network. Server1 is to receive a non-...
- 1
0
votes
0
answers
33
views
Connection closed by foreing host - Postifx, Dovecot
2024-02-07T10:44:27.271322+00:00 ubuntuserver postfix/postfix-script[23192]: starting the Postfix mail system
2024-02-07T10:44:27.277625+00:00 ubuntuserver postfix/master[23194]: daemon started -- ...
- 5
0
votes
1
answer
1k
views
Dovecot - rcpt [email protected]: Failed to initialize user
I have an SMTP server:
Dovecot as its IMAP server
Postfix as its MTA
OpenDKIM to sign the emails.
When I send mail it throws this error:
Jan 01 10:46:01 example.com dovecot[211047]: lmtp(219823): ...
- 105
0
votes
1
answer
263
views
Postfix doesn't send mail; example.com loops back to myself & Connection timed out
I have Postfix on Ubuntu 22.04. I can only receive but not send emails.
I have configured Postfix using How To Install and Configure Postfix on Ubuntu 22.04 tutorial from DigitalOcean.
sudo tail -f /...
- 105
0
votes
2
answers
169
views
How can set the order of name servers in LINUX?
This question is in context with the DNS queries by postfix MTA in Ubuntu OS. The issue I am facing is that I have two name servers one internal and one external. External DNS name server is added in ...
- 47
0
votes
1
answer
347
views
Milter Application Error Postfix Email Server
I am trying to sign the emails on my email server with opendkim but I am running against an error that I just can't seem to fix. The error I am getting is: warning: milter local:opendkim/opendkim.sock:...
- 31
0
votes
0
answers
373
views
How to upgrade postfix/dovecot/spamassassin/postscreen email server from Ubuntu 20.04 to Ubuntu 22.04?
I am running an Ubuntu 20.04 based LEMP Email server running Postfix, Dovecot, Postscreen, and SpamAssassin. I built the server using this Linuxbabe Guide, and followed the instructions and every ...
- 93
0
votes
1
answer
216
views
How to set up the relayhost to send emails to other external SMTP servers using PostFIX?
I am currently configuring an SMTP server on OCI but have some doubts. I would like to send emails with my domain to external servers such as GMAIL, OUTLOOK, and others.
I had configured the "...
0
votes
2
answers
93
views
Postfix : change email from unix_user@domain to a something@domain
I have two domains on a server, they are rarely used and they have 2 ubuntu users like
domain1_user
domain2_user
and I want to associate email addresses like
info@domain1
info@domain2
Obviously I ...
- 1
1
vote
3
answers
229
views
Postfix - Cannot run - update-ca-certificates -fresh
I just face an extensive Email service disruption at my work. During the incident, we had some postfix giving some errors concerning:
Fatal: connect #n to subsystem private/rewrite: Connection refused....
- 113
0
votes
0
answers
21
views
Postfix 2nd domain
I have two postfix servers(virtual machines) on same host
1st domain = mail.xyz.org
2nd domain = mail.xyz.edu
I want to send mail from 1st domain to 2nd domain.
If i try, it gives error:
Recipient ...
- 1
1
vote
1
answer
1k
views
Troubleshooting SMTP and IMAP Configuration for Postfix Email Server on Ubuntu
I've recently installed Postfix and dovecot on my linux machine running Zorin OS 16.3(Ubuntu Based Linux Distro) to be able to host my own email server for my website.
The server is port forwarded ...
- 111
0
votes
0
answers
140
views
Dovecot authentication with hardware key ( yubikey )
Recently, I've been working on implementing hardware keys for authorization in dovecot/postfix and unfortunately, perhaps due to lack of knowledge, I wasn't able to implement it. From what I've seen, ...
- 1
0
votes
0
answers
51
views
"mail spamd[495361]: internal error, python traceback seen in response" on Ubuntu 20.04 when receiving email from gmail. How to debug and fix?
I am running Ubuntu Server 20.04 on a Raspberry Pi. It is set up as a web/email LEMP server. When I send an email from my gmail account to a an email address on my LEMP server, I get an error from ...
- 93
1
vote
1
answer
450
views
Audit log emails not going to the correct address
On Ubuntu 20, I'm trying to send audit logs to [email protected]. I do have a real domain and email server but I'm redacting them here. When I trigger an audit event, the email is instead sent ...
- 75
0
votes
1
answer
1k
views
How to set up a postfix relay server for Google Workspace(gmail)?
There is a need to make a relay server for the company's corporate mail. The need arose due to the presence of some google ip in the spam lists, and this sometimes leads to the fact that letters end ...
- 1
0
votes
0
answers
219
views
Postfix block spam email address
I have an smtp relay server on ubuntu 22.04.Config below:
main.cf(Postfix 3.6.4)
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name ...
- 1
0
votes
1
answer
96
views
Postfix/Dovecot Not receiving external emails in Ubuntu 16.04
I have read all of the threads and can't figure out what is the problem. I can send emails. I can receive emails from my localhost and my other email names of the same domain, but I cannot receive ...
- 103
0
votes
0
answers
77
views
VPS - Sending mails fails on ubuntu via postfix
i have a VPS on Hetzner and struggling with sending mails. They says that block outgoing port 25, 465.
I have tried to change postfix configurations to change the port for smtp to 587 but still unable ...
- 103
0
votes
1
answer
617
views
Send An E-mail To A GMAIL Address From Linux Mail Command Using Postfix As The MTA
I am a beginner in configuring mail delivery systems. Recently, orders came from the management that we need to send confirmation emails to our clients whenever they complete their applications (I ...
- 1
0
votes
1
answer
170
views
Postfix to gmail relay - preserving the sender's address
Relayed emails come 'from' [email protected], not [email protected], so I cannot reply.
I have several domains and am using Postfix to relay emails sent to [email protected] on to [email protected] as ...
0
votes
1
answer
450
views
iptables - port 25 not getting traffic even though default policy is ACCEPT and all rules are flushed
I am having a problem that's driving me up the wall. I have a server, where after several attempts at various iptable rules, I have flushed iptable rules and set default policy to accept.
The output ...
- 121
0
votes
0
answers
201
views
Ubuntu 20.04 Server spamassassin/spamd "internal error, python traceback seen in response." No additional info. How to debug and fix?
On Ubuntu server 20.04, I am running spammassassin/spamd, postfix/dovecot. In my mail logs at /var/log/mail.log I am getting a spamd
internal error, python traceback seen in response
error as shown ...
- 93
2
votes
1
answer
5k
views
Ubuntu PostFix smtp.gmail.com Connection timed out / Network is unreachable
So, i have a postfix mail server set up, and when i run the following command:
telnet smtp.gmail.com 25
------------------------------------
Trying 142.250.147.108...
Trying 2a00:1450:4025:c01::6d...
...
user1004201
0
votes
0
answers
137
views
Postfix can not open file in home directory
I am trying to setup email piping. I've created an alias that pipes the email to a php script where I can do my processing but I keep getting error Could not open input file: /home/domain/public_html/...
- 258
1
vote
1
answer
146
views
postfix logs showing ??? as command from client
I am running an Ubuntu 18.04.6 LTS server with the postfix 3.1.0-3ubuntu0.4 package.
Both the Apple Mail client and the Postbox client experience a weird delay when first sending an email to the smtp ...
- 195
0
votes
0
answers
1k
views
'FETCH' command with a 'BAD' response: Error in IMAP command FETCH: Invalid messageset (0.001 + 0.000 secs). on DoveCot IMAP Server
I'm hosting my webserver using postfix and dovecot. it works fine when i try to connect using my iphone and my macbook.
I need to connect an external WebbApplication to get all E-Mails over IMAP ...
1
vote
1
answer
854
views
Malformed BASE64 value in vmail_ssl.map.db
I'm using postfix in Ubuntu 20.04.5 . Here's my vmail_ssl.map file, with domain names redacted:
mail.domain.org /etc/letsencrypt/live/mail.domain.org/privkey.pem /etc/letsencrypt/live/mail.domain.org/...
- 13
1
vote
0
answers
225
views
Getting Error 550 while sending a message (Postfix)
I have Ubuntu Server 22.04, Postfix, Dovecot, MariaDB and Roundcube Webmail.
I’ve created two mailboxes: [email protected] and [email protected]. If I try to send a message to each other or to ...
-4
votes
1
answer
3k
views
SMTP send error Client does not have permission to submit mail to this server. The server response was: 4.7.1 : Relay access denied
This error comes on my server when I am sending mail outside my domain like to Google, Microsoft, etc. Below is my Postfix config file.
# See /usr/share/postfix/main.cf.dist for a commented, more ...
1
vote
1
answer
2k
views
Postfix mysql warning: /etc/postfix/sql/mysql_virtual_alias_maps.cf: Permission denied
I am running postfix on an ubuntu 20.04 server. I am trying to fix some warnings in my /var/log/mail.err file I am getting the following:
Aug 9 09:34:45 mail postfix/proxymap[281260]: error: open /...
- 93
0
votes
1
answer
490
views
Blocking tor traffic with postfix or fail2ban on mailserver
I am running an Ubuntu 20.04 Lemp server, with postfix/dovecot. I have fail2ban set up so that if 2 unsuccessful loging attempts to my email are made by the same ip address, fail2ban bans the ip's ...
- 93
2
votes
0
answers
302
views
Postfix SASL error: warning: unknown[xxx.xxx.xxx.xxx]: SASL LOGIN authentication failed: authentication failure
My use case is to use my own mail server to send emails from CCTV NVRs to overcome the daily limits imposed by GMail. The NVR has an option to setup authentication. The config worked for whitelisted ...
2
votes
1
answer
1k
views
spamass-milter[1403]: Could not retrieve sendmail macro "i"!. Please add it to confMILTER_MACROS_ENVFROM for better spamassassin results
I am running an Ubuntu 20.04 based LEMP server on a Raspberry Pi. Installed on it is postfix/dovecot/amavis/spamassassin. When I look at my mail.err logs by running the following command:
cat /var/log/...
- 93
0
votes
2
answers
2k
views
"postconf: warning: /etc/postfix/main.cf: undefined parameter: mail" when running the command "postconf default_process_limit" in Ubuntu 20.04 Server
I am running an Ubuntu 20.04 LEMP Server. It is an Email and Web Server. I am having a puzzling warning in my postconf messages that I need help fixing.
When I run the command
postconf ...
- 93
0
votes
1
answer
165
views
postfix loops back to myself email issue (was working before apt upgrade Ubuntu)
Everything was working normal till apt upgrade on Ubuntu 20.04 LTS, don't even remember what was upgraded, just routine, didn't change any config...
I really tried to fix, searched, but I don't know ...
- 103
1
vote
1
answer
537
views
postfix removing body of bounced messages
I've noticed for messages that fail to deliver with postfix, the body of the message is removed. Here's an example (real emails replaced with temps):
--5F54EFCA0A.1653443634/MYDOMAIN.COM
Content-...
- 111
0
votes
1
answer
1k
views
Ubuntu 18.04 - SMTP ERROR: Failed to connect to server: Connection refused (111)
I have this new error since 2 weeks on my server.
I haven't touched the code or anything.
I usually send mail trough PHPMailer, but I noticed Thunderbird won't work anymore also.
I'm on Ubuntu 18.04 ...
