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Email to FAX Guide

  1. make sure that your desired domain's MX records are properly configured for email2fax server. verify using following command
    # nslookup –type=mx example.com

  2. install sendmail service and enable sendmail service at startup.

  3. enable sendmail to listen on public ip address look for following line in /etc/mail/sendmail.mc

    DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl

    and change line mentioned above into

    DAEMON_OPTIONS(`Port=smtp, Addr=0.0.0.0, Name=MTA')dnl

  4. apply changes

    m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

  5. Add asterisk to list of trusted user

    echo "asterisk" >> /etc/mail/trusted-users

  6. Add your domain name in allowed local domain list to let sendmail receive mails for that domain

    echo "FAX_DOMAIN.TLD" >> /etc/mail/local-host-names

  7. Route all mails for none-existing addresses into asterisk mailbox so we can receive emails for addresses like xyz_number@FAX_DOMAIN.TLD

    echo '@FAX_DOMAIN.TLD asterisk' >> /etc/mail/virtusertable
    makemap hash /etc/mail/virtusertable

  8. grant proper permission to apache user (asterisk) on mail folder

    chmod +t /var/spool/mail

  9. restart sendmail service so changes can take affect

    service sendmail restart

  10. login at ictfax web interface as admin

  11. goto administrator => mailhandler => Add Mailbox and set following fields

    E-mail address: fax@FAX_DOMAIN.TLD
    Folder: /var/spool/mail/asterisk
    POP3 or IMAP Mailbox: IMAP
    Mailbox domain: *** must be empty ***
    Security: Require password
    Default commands: type: fax
    Delete messages after they are processed?: TICK / Yes
    Cron processing: Enabled

  12. setup cronjob so incoming email can be processed after every 5 minutes

    echo 'MAILTO=""' > /tmp/asterisk_cron.txt
    echo "*/5 * * * * wget -O /dev/null 'http://FAX_DOMAIN.TLD/cron.php' 2>/dev/null" >> /tmp/asterisk_cron.txt
    crontab -u asterisk -l >> /tmp/asterisk_cron.txt
    crontab -u asterisk /tmp/asterisk_cron.txt

    NOTE: make sure that /etc/hosts.allow is properly configured for accepting mails, and
    smtp port (25) is not blocked by firewall. if so Add following line to
    /etc/sysconfig/iptables above the last reject/drop rule:

    -A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT

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