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postfix

  1. V

    Issue Smarthost + SRS = relay?

    We have the following situation for a domain on our Plesk Obsidian 18.0.64 for Linux: - Domain xxx.yyy is setup on the server with mailsettings "disable incoming mail, allow outgoing mail" (mail is at MS365) - SMTP server is postfix - Setup the smarthost feature pointing to our Spamexperts...
  2. F

    Issue Missing SMTP "received from" header

    Hi: I have been trying to report some spam messages to SpamCop. But when I report the entire message with the headers, SpamCop can't determine the source IP of the spamming server. I have checked and some messages get the "Received from" header but others (like Gmail messages) don't. Other...
  3. iain

    Question PCI compliance - Postfix EXPN/VRFY issue

    Hi, I've been sorting out a few PCI compliance issues from their scans but this one I can't fix: Multiple Mail Server EXPN/VRFY Information Disclosure The remote SMTP server answers to the EXPN and/or VRFY commands. The EXPN command can be used to find the delivery address of mail aliases, or...
  4. J

    Issue Postfix Issue Mobile Client

    Hello, i have the Problem that i cant connect any mobile Device to my Plesk Mail Account it says mail.mydomain.com does not Answear on Roundcube and Outlook Desktop Client sending and reving mails works fine has everyone an Idea? Best Regards Jannik
  5. andreios

    Issue Creating a Send-only e-mail address leads to an error message: 'No such user ..'

    I tried to create a send-only Email. But I got "No such user '[email protected]' in mail authorization database" After activating inbox for this E-Mail account, it worked immanently. I use postfix.
  6. S

    Question postfix/smtpd: could not find auxprop plugin, was searching for sql_sqlite3

    the postfix is down for unknown reason, restarted it email cannot be sent/received. I have these errors in /var/log/messages : plesk version 12.0.18 what/where should I be looking at Thanks
  7. T

    Issue Duplicated emails

    Hi All of a sudden I am getting reports from clients about receiving duplicated emails in the hundreds with the same Message ID. We have recently introduced greylisting to solve a problem where the server was blocking emails with secureserver.net in the SPF record and the emails that were...
  8. E

    Issue Several understanding errors in my postfix

    Hello everyone. After several weeks of work, I have finally not been able to solve the problem I have with my Postfix server and sending emails to Gmail accounts. I put them in the situation and explain the problems I have been encountering to see if anyone has had the same problem and managed...
  9. R

    Resolved After migration: Mail delivery does not work: do not list domain in BOTH mydestination and virtual_mailbox_domains

    Hello, After migrating from Centos to Cloudlinux and restoring from a Plesk backup, it appeared with mail receiver, but for only one domain assigned to the server (All other domains work fine). This solution didn't help me...
  10. R

    Issue SSL/TLS cert for mail server not updating (Lets Encrypt)

    It seems Plesk has some issues renewing the TLS certificate which is used by the mail server. In my setup I have: Domains: - domain.tld - mail.domain.tld (only used for the certificate) Mail server - on domain.tld (for mails like [email protected]) - SSL/TLS certificate for mail: Lets Encrypt...
  11. K

    Question Is there a way to see contents of the postfix greylisting?

    I recently switched on greylisting and wonder if I have the possibility to see, which domains (or IPs?) are already saved as being ok for new mail to pass, and maybe also what's currently in the "waiting" (for email to arrive again) state?
  12. U

    Question How to configure postfix to pipe all incoming email to a script using Plesk?

    Basically, I'd like the same functionality as in the question below. I only run into the issue that whenever I add transport_maps = hash:/var/spool/postfix/plesk/transport, hash:/etc/postfix/transport to the main.cf file, indeed the script gets executed, but the email will no longer be stored...
  13. J

    Resolved 25: Connection timed out - Almalinux 9.4 x86_64 | 18.0.61.1

    Hi: I migrated centos 7 to Almalinux 9.4 one month ago, and works ok. This morning, i go to send a email, and dont work, and the logs said: May 17 21:46:08 plesk plesk_saslauthd[90555]: privileges set to (89:89) (effective 89:89) May 17 21:46:08 plesk plesk_saslauthd[90555]: failed mail...
  14. C

    Resolved Getting the error message "452 4.3.1 Insufficient system storage"

    Hi, a few days ago this message started to appear in our maillog: It always starts around 04:12AM and it lasts less than 10 minutes. The affected accounts are in most of the cases the same three. Postfix and Amavis are the ones who complain about it, Postfix is my SMTP server and I got Amavis...
  15. A

    Question Disable local mail delivery

    Hi all, I have an issue that i can not find a correct answer to for a while now. Office 365 makes it very difficult to use regular smtp so that a webshop on Plesk can send E-mails from an Office 365 account. Since our customers would like to continue using Office 365 we have setup the...
  16. S

    Issue Email deliverability issues

    I have a near perfect score on mail-tester.com -> Spam Test Result But still all the email that get sent through roundcube or thunderbird are going straight to outlook junk. I checked all the spam blacklists and the IP is clear. Also I asked for a delist with microsoft and they said I wasn't on...
  17. R

    Issue Change outgoing mail address IP then broken server

    Hello, Change the IP address for outgoing emails in Plesk panel server then broke the mail and all websites on the dedicated server. Maybe someone will answer why everything stops working all service?
  18. R

    Issue Postfix generates a lot of processes after a hacker attack

    Hello, I have a problem after hacking the server to send spam from my mailboxes. I have dozens or even hundreds of such processes all the time: I get a lot of alerts: lfd on bendlight.eu: High 5 minute load average alert - 6.40
  19. W

    Question cloud memory per postfix or imap/smtp sofware

    hi I wonder if I can use an AWS Amazon Cloud space for mail (Postfix and Imap courier or other Plesk mail software) to store mail as you can imagine I have problems managing the imap saddles and the memory it occupies on the server disk today the mail goes here /var/qmail/mailnames And if so...
  20. T

    Resolved Smtp Smuggling advisory

    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.
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