postfix

Regarding this advisory SMTP Smuggling - Spoofing E-Mails Worldwide Is it safe to apply the following changes to postfix to a server managed by Plesk? https://www.postfix.org/smtp-smuggling.html Thanks for your assistance.

Hi guys, at this point I'm at a crossroads, just as it happened on another server, equipped with Webmin, I also suffered an attack on the server with Plesk, although the site is different and had never been hacked before. The purpose is always the same, to send emails from the server, I suspect...

Hello, we are runnig plesk obsidian 18.0.44 with postfix as a mail relay for an exchange server 2019. there are multiple different mail domains on the exchange server. in recent times mail delivery failed because dkim was not set up so i enabled dkim for domains on the exchange server. dkim...

Hi Everyone! New VPS, we got Plesk up and running, only problem is when we are sending emails, we get: CC35717E570: to=<[email protected]>, relay=none, delay=2530, delays=2439/0.01/91/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[142.251.9.26]:25: Connection timed...

In the recent update to Obsidian this was announced:"Added the ability to add Transport Layer Security Authentication (TLSA) DNS records to domains’ DNS zones in Plesk. Such records are most commonly used to implement DNS-based Authentication of Named Entities (DANE)." Where can I find more...

Hi. I've recently observed quite a large amount of outgoing connections from port 25 to numerous (malicious?) IP's through postfix, in turn creating several rather strange smtpd processes. I think they are bad bots. I'm mass banning them via fail2ban in the plesk-postfix part every time they do...

Hello, I receive emails, but the sending is stuck in the queue. Log: Jul 25 08:30:04 D1B7468 postfix/smtpd[176467]: connect from localhost[127.0.0.1] Jul 25 08:30:04 D1B7468 postfix/smtpd[176467]: TLS SNI localhost from localhost[127.0.0.1] not matched, using default chain Jul 25 08:30:04...

Exception: Failed to solve dependencies: plesk-web-hosting-18.0-2.centos.7+p18.0.54.0+t230619.1619.x86_64 requires mod_ssl ea-apache24 conflicts with httpd-2.4.6-99.el7.centos.1.x86_64 wp-toolkit-cpanel-6.2.4-7368.x86_64 requires sw-engine <= 3.46.0...

Hey Pleskians! We have a case, where a remote Mail user have a dmarc record as following: $ dig txt _dmarc.domain.com +short "" "v=DMARC1" This leads to an Error when a mail is sent to our Plesk server, the Mail is not bounced but also never delivered, and from the logs i would have assumed...

Hi, I have multiple domains on the same plesk server, I need help with 2 issues: 1. When the user send an email from their laptop outlook application, the public IP "From" will be exposed, is there a way to hide the sender IP? As example: Hop Delay From By With Time (UTC) Blacklist...

Hello, Spam emails started coming to root@ addresses, i check #postmap -s /var/spool/postfix/plesk/virtual | grep [email protected] [email protected] [email protected] make command #plesk repair mail [email protected] Repairing the mail server configuration Reconfiguring the...

Hello, today i checked that our mailserver based on postfix / rspamd / kopano on ubuntu 20.04.5 LTS was not working. I checked some logs and see there is no postfix service anymore. I checked /etc folder and see that folder "postfix" is missing completly. After searching syslog i see postfix...

Trying to forward emails from a domain we no longer use (but host) to a new domain hosted by Google. The old domain is activated for email and forwarding addresses are setup. No bounces are received from test messages. In maillog I see messages such as this: May 18 03:30:55 {domain}...

Hi All, I have a VPS, with the provider Contabo. Their support is pretty useless, so im reaching out to the community. Every few days, my E-mail stops working across the entire server with the same error (example below) (the email addresses change). Sometimes i can get acess back briefly by...

Hi All, please take a look at the screenshot. Any help? I'm new to plesk and a novice! It looks like my server is being brute forced from Iran. Thanks

I am trying to set up a VPS on Heart Internet which turns out to be a Godaddy VPS. They use a mail relay server & block port 25 but Plesk support told me that port 25 is needed to communicate with other mail servers but that it sends mail via port 587. I have Postfix installed as the MTA & I...

Hello dear Plesk Community, I have some questions and hardly find answers that help me I host a few domains and websites and want to run several mail servers that I already have. How can I make it so that each domain has its own smtp host so does not point to one, but this is not absolutely...

Suddenly I receive new error messages in var/log/mail.err h2828820 postfix/sendmail[7558]: fatal: open /etc/postfix/main.cf: Permission denied Feb 1 21:13:00 h2821220 plesk-sendmail[7557]: S7546: sendmail unsuccessfully finished with exitcode 75 Feb 1 21:13:00 h2821220 postfix-local[7546]...

Hey! Recently I have updated my server from Debian 9 to 10. During installation process also Plesk Obsidian was udpated to the latest one: 18.0.48 . After installation I faced several issues with MariaDB, mail, dns and more. Most of them I've already fixed however 2 are still remaining...

Hi to all, I have a problem with postfix on plesk, Im trying to send a email to [email protected] from [email protected] and when I check the logs I can see that is trying to resolv as a local address. I paste the log (I reemplace the real hosted address to local.com and external as...