Concerns SMTP Port 25

Discussion in 'Server Operation' started by misterm, Mar 21, 2010.

  1. misterm

    misterm Member HowtoForge Supporter

    Bonjour à tous , je vais exprimer mon soucis en français ensuite en anglais traduit pour que vous comprenez ce que je demande est maintenant vous demandez si c'est possible d'arranger le problème.

    Quand je m'envoie un email sur le même compte cela passe sans aucun soucis (logiciel utilisé est Microsoft Outlook 2010 (Beta) Windows 7) avec paramètre de identification est ouverture du port 587 cela fonctionne.

    Mais , quand j'effectue le contraire avec le port 25 active (pop & smtp.domaine.com) cela marche pas , bon je sais que cette conversation à était déjà ouverte avant , mais il y à t' il pas une astuce pour que cela fonctionne , quelque chose qui pourrait fonctionner impeccablement.

    Voila , merci de votre aide ...

    Hello all, I express my concerns in French then translated into English so you understand what I ask you now wondering if it's possible to fix the problem.

    When I send me an email on the same account that passes without any worries (software used is Microsoft Outlook 2010 (Beta) Windows 7) with parameter identification is opening the port 587 it works.

    But when I perform with the opposite port 25 active (pop & smtp.domaine.com) it works not good I know that this conversation was already open before, but there does it not for a tip it works, something that might work perfectly.

    Thank you for your help ...

    MM :confused:;)
     
  2. Toucan

    Toucan New Member

    When you send this email, are you trying to send it to yourself?
    An account on the same mail server?
    Or someone on completely different domain?

    In your mail client, I would try using the IP address initially rather than smtp.yourdomain and pop3.yourdomain. That would help rule out dns errors. That's what Falko advised me and it did work.

    Then in time I added the CNames for pop and smtp once I was sure the mail server was working.
     
  3. sjau

    sjau Local Meanie Moderator

  4. misterm

    misterm Member HowtoForge Supporter

    But OK, but you not answer my question, is it possible or not?

    I said that it is not possible is that I found the answer elsewhere, ok, I give the answer on the forum, but here ...

    MM :confused:
     
  5. Toucan

    Toucan New Member

    Misterm,

    I'm not sure what your question is. If the question is can you use smtp on port 25 to send mail then the answer is yes.

    But like I said before, I think your problem is more complicated than that. If you're able to send mail to yourself, or to another email account on a domain that sits on the same server then it doesn't really prove much. It just shows that postfix can move mail from one user to another within itself.

    The real test is will it route mail in and out of your lan to other mail servers. Remember you have to have that port forwarded if your server sits behind a router.

    And again, I would advise using the IP address to communicate with your mail server to rule out some dns problems, or even better, use squirrel mail as the mail client as it should have been configured if you used the perfect install guides.


    Here is a link to the ports used by mail systems:
    http://www.emailaddressmanager.com/tips/mail-servers.html


    You indicated you had found the answer on another forum but didn't post the link? best of luck!
     
  6. misterm

    misterm Member HowtoForge Supporter

    I'm not sure what your question is. If the question is can you use smtp on port 25 to send mail then the answer is yes.

    Yes like?

    A tip configuration to be done in Outlook 2007?

    But like I said before, I think your problem is more complicated than that. If you're able to send mail to yourself, or to another email account on a domain that sits on the same server then it doesn't really prove much. It just shows that postfix can move mail from one user to another within itself.

    It does not, an error is to stop all this ...

    The real test is will it route mail in and out of your lan to other mail servers. Remember you have to have that port forwarded if your server sits behind a router.

    OK, but not go to a router is a dedicated OVH.

    MM :confused:
     
  7. sjau

    sjau Local Meanie Moderator

    (1) your ISP on whose internet connection you are (at home or work or school) might block port 25. Then you can't use port 25. In that case port 587 works but you'll have to make your mailserver listening to that.

    (2) What do you use as MTA (postfix?) and what do you use to access the mail accounts by pop/imap (courier?)
     

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