• moon

    Relay access denied.
    pls help

    • chicane

      Good set of instructions -thanks

      For anyone getting Relay access denied you need to change the SMTP setting in Squirrel mail to login with IMAP user name and password (option B)

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  • andris

    At top of tutorial ”This guide is strictly for learning purpose , not for real time servers .” Why not for real time servers? What problems would be if use for real time servers?

    • krizna

      Main reason is security. when it comes to real time servers, you should concentrate mainly on spam filters , antivirus , firewall etc…
      check this one .. http://www.scalix.com/wiki/index.php?title=HowTos/Complete_Postfix

      • scarto

        Hi Krizna
        i use centos 6.5 it works fine on windows 7 tunderburd but on the local server(centos) say ” username or passed invalid olso say Configuration could not be verified” on the local i use olso tunderburd

  • Alireza

    Relay access denied !!!

  • Evgeniy

    Hi, can explain why all mails getting into /root/mail/new/ folder, but I need into user’s folder

  • ann

    receive mail ok but can’t send from thunderbird – error msg: Sending of message failed.

    The message could not be sent because the connection to SMTP server smtp.englishquestion.com timed out. Try again or contact your network administrator.

    chek /var/log/maillog as following;

    warning: SASL: Connect to private/auth failed: Connection refused

    fatal: no SASL authentication mechanisms

    warning: process /usr/libexec/postfix/smtpd pid 19579 exit status 1

    warning: /usr/libexec/postfix/smtpd: bad command startup — throttling

    Does any one know what is happening?

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  • Foor Von Aug

    Unable to connect

    Firefox can’t establish a connection to the server at

    Can’t find out where I went wrong, doublechecked the config-files and I just can’t get into the webmail server.. It’s driving me crazy

  • Lorem ipsum

    oh ! thank you thank you thank you thank you thank you thank you

  • Sackeus Wilbard Oom-Ben

    It worked thanks very much

    • Michel Daphnis

      can u receive externe mail like yahoo, gmail etc. There is my problem

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  • Shiva

    Hi ..!!

    i have installed/configured postfix mail server and now i want to send mass mails, is there option to break those bulk mails into single mails and queue 1000 recipients to one after the other ?

  • Farhan Ziya

    hi, I have setup postfix as per the steps mentuoned in this blog. however i am not able to received emails from external users. getting error msg in log file as “”NOQUEUE: reject: RCPT from Recipient address rejected: Access denied;””

    Please help

  • LEDfan

    Great tutorial! Are the connection between the client (e.g. thunderbird) and server encrypted when sending emails via SMTP and receiving emails via IMAP? So a man in the middle can’t read my emails?

  • BenF

    Just posting to say thanks for an excellent tutorial – this is the first time I’ve found all the information around configuration for Postfix, Dovecot and SSL/TLS in one place.

    Followed it all through and it is all now working perfectly.

    Only gotcha I found was getting mod_ssl installed and setup – followed the guide here:

    And all good. Thanks Again !

  • POM

    Hi Krizna,

    After configuring everything (all up and running), when I login to squirrelmail it comes an error:

    Unknown user or password incorrect
    Please help.


  • cristi

    olso add in /etc/hosts your ” ip mail.ipyourip.com”

  • Lương Trung Kiên

    Unable to connect WebServer….


  • billtheamerican

    Doesn’t work for smtp relay and doesn’t allow outside providers to mail to it (which renders this tutorial useless for the most part).

    • Taylor Hastings

      Does your post correspond to my problem posted? Hmmm.

  • Rohan Jaswal

    While creating ssl certificates, on entering the command
    >openssl rsa -in smtpd.key -out smtpd.key.unencrypted

    I am getting the following error:

    Error opening Private Key smtpd.key 3078141676:error:02001002:system
    library:fopen:No such >file or
    3078141676:error:20074002:BIO >routines:FILE_CTRL:system
    lib:bss_file.c:400: unable to load Private Key

    Please help in resolving this.

  • Vincentv

    Thank for the instructions! Followed it and works great. I did not install the squirrelmail. I removed my profile from thunderbird and add the account back to let it find the mail settings. Works great now. Vincent

  • Giorgio Canepa

    postfix is a BIG shit and the prove is here.

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