25: Connection timed out

Discussion in 'Installation/Configuration' started by pnpsuknetuk, Sep 9, 2024.

  1. pnpsuknetuk

    pnpsuknetuk New Member

    I have setup the system checked port 25 is enabled and also on firewall / isp but cant get outbound email to work.

    -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
    8DA538416B 3677 Sat Sep 7 12:09:52 MAILER-DAEMON
    (connect to hotmail-com.olc.protection.outlook.com[52.101.41.55]:25: Connection timed out)
    *@hotmail.com

    DDA7684168 3209 Sat Sep 7 12:05:22 MAILER-DAEMON
    (connect to hotmail-com.olc.protection.outlook.com[52.101.41.20]:25: Connection timed out)
    *@hotmail.com


    On bounces I get also "Sep 3 06:54:53 windows dovecot: auth: Error: auth client 0 disconnected with 1 pending requests: Connection reset by peer" I really have zero idea
     
  2. Strontium

    Strontium New Member

    Probably a DNS issue.
    Code:
    host -t mx hotmail.com
    hotmail.com mail is handled by 2 hotmail-com.olc.protection.outlook.com.
    Code:
    host hotmail-com.olc.protection.outlook.com
    hotmail-com.olc.protection.outlook.com has address 52.101.68.19
    hotmail-com.olc.protection.outlook.com has address 52.101.73.10
    hotmail-com.olc.protection.outlook.com has address 52.101.10.11
    hotmail-com.olc.protection.outlook.com has address 52.101.68.11
    Code:
    host 52.101.41.55
    Host 55.41.101.52.in-addr.arpa. not found: 3(NXDOMAIN)
    
    host 52.101.41.20
    Host 20.41.101.52.in-addr.arpa. not found: 3(NXDOMAIN)
     
  3. till

    till Super Moderator Staff Member ISPConfig Developer

    Are you sure you checked port 25 outgoing correctly? Most providers and data centers block it today. You can test it like this:

    Code:
    apt install telnet
    to install the telnet command, then run:

    Code:
    telnet hotmail-com.olc.protection.outlook.com 25
    if you get a timeout, then port 25 is blocked. if its not blocked, you must get this result:

    2024-09-09 18_21_34-root@sv1_ ~.png
     
    ahrasis likes this.

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