ISPConfig3 Content-Filter

Discussion in 'General' started by x-myrza, Feb 24, 2023.

  1. x-myrza

    x-myrza New Member

  2. Taleman

    Taleman Well-Known Member HowtoForge Supporter

    If you want to block sending, there is setting "disable sending" in the mailbox settings.
    If you want to block receiving e-mails by sender, this is explained in ISPConfig Manual, page 187.
  3. x-myrza

    x-myrza New Member

    Thanks for your reply! But the problem is not with my domain, but with the username(false username and domain, phishing, spam)
    "any [email protected]"
  4. pyte

    pyte Active Member HowtoForge Supporter

    There are multiple ways to block messages that are spoofed.
    You could implement it with "smtpd_sender_restrictions" and add them manually to the list to block them. Or implement SPF for the domain in question so it will fail when the origin IP is not listed in the record. Or use rspamd to filter out and block the message.
  5. x-myrza

    x-myrza New Member

    smtpd_sender_restrictions = check_sender_access proxy:mysql:/etc/postfix/,
    check_sender_access regexp:/etc/postfix/,
    check_sender_access regexp:/etc/postfix/
    v=spf1 a mx ip4:my_ip_address ~all
    Installed sieve. Sieve does not block by sender name.

Share This Page