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  1. K

    Resolved Can't send mails to external email addresses

    The provider is 1&1. I just talked to their technical service some minutes ago and they have solved the problem. I've been told that by default they always block port 25. Even if you unlock it from the control panel, it will still be blocked. Only they can do it. I think it would be good if...
  2. K

    Resolved Can't send mails to external email addresses

    I have unlocked port 25, even so, I can not connect through telnet, so I will contact the hosting company, because maybe they are blocking the port
  3. K

    Resolved Can't send mails to external email addresses

    After sending a mail to a gmail address, "postqueue -p" shows queue id, size, arrival time and sender, and just before the recipient address it shows the following: connect to alt2.gmail-smtp-in.l.google.com[74.125.200.26]:25: Connection timed out
  4. K

    Resolved Can't send mails to external email addresses

    Yes, I already tried all three, but without results.
  5. K

    Resolved Can't send mails to external email addresses

    1&1 Cloud VPS CentOS Linux 7.5.1804 (Core) Plesk Onyx Version 17.0.17 Update #51 I want to start saying that I am new to this. I have no problem when I send mails to addresses hosted on my server, but if I send an email to an address hosted on an external server, for example, @Gmail or...
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