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Piotr
Asked: 2013-08-01 00:56:47 +0800 CST

Sendmail very slow - /etc/hosts configuration

  • 772

It takes ~15 seconds to send single e-mail using sendmail.

/var/log/mail.log:

Jul 31 09:52:42 piotr-probook sendmail[2912]: My unqualified host name (piotr-probook) unknown; sleeping for retry

/etc/hostname:

piotr-probook

/etc/hosts:

127.0.0.1   piotr-probook localdev localhost
192.168.1.1 router

/etc/mail/sendmail.cf:

# hosts file (normally /etc/hosts)
O HostsFile=/etc/hosts

Obviously I can ping piotr-probook host and HTTP server popups in browser when i type url http://piotr-probook

What am I doing wrong? How to fix the problem?

sendmail

2 Answers

  1. Best Answer

    Got the answer at superuser.com https://superuser.com/a/626219/242163:

    Sendmail requires that the result of "hostname" be a fully qualified domain name to start cleanly.

    Set the hostname to something like piotr-probook.localdomain and update /etc/hosts.

    /etc/hosts

    127.0.0.1   piotr-probook.localdomain piotr-probook localdev localhost
    • 15

  2. The above answer didn't work for me. So I am posting here what I have done to make it work.

    Installed send mail through terminal

    apt-get install sendmail

    then opened the hosts file

    # edited from: sudo gedit etc/hosts
sudo gedit /etc/hosts

    replaced the the line

    127.0.0.1 localhost

    with

    127.0.0.1 localhost localhost.localdomain mydomainname

    To get the domain name please type

    hostname

    in terminal and run.

    restart apache

    sudo service apache2 restart
    • 15