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Tag: postfix

SOGo ActiveSync not working – iRedmail

By

On June 28, 2016

In iRedmail Mailserver

iRedMail is:
1. A ZERO COST, fully fledged, full-featured mail server solution. All components are free and open source software
2. It support unlimited domains and email accounts.
2. SpamAssassin, ClamAV, SPF, DKIM, greylisting, whitelisting, blacklisting.
3. Stores mail accounts in your favourte backend: OpenLDAP, MySQL, MariaDB, PostgreSQL.
4. Supports major Linux distros

You know how difficult is to configure a fully fledged email service you have tried. iRedmail do this heavy part for you. I would recommend this piece of software to everyone. I used to configure email server manually using Postfix, Postfixadmin, MySQL, SpamAssassin, etc. Even though I have done this several times, it needs 2-3 hours for setup. But iRedmail can do all of this and MORE in few minutes, thus saves lot of time.

iRedmail comes with SOGo which provides EAS Activesync support

SOGo is providing the EAS support. If you are getting an error “Unable to connect” on email client do following

1. Check https://hostname/Microsoft-Server-ActiveSync

if it gives 404, issue with SOGo httpd conf
If it gives white page, no problem with conf

SOGo installs Apache config file /etc/httpd/conf.d/SOGo.conf by default, please open it and find below lines:

#ProxyPass /Microsoft-Server-ActiveSync \
# http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync \
# retry=60 connectiontimeout=5 timeout=360

Remove # at the beginning to enable ActiveSync support:
ProxyPass /Microsoft-Server-ActiveSync \
http://127.0.0.1:20000/SOGo/Microsoft-Server-ActiveSync \
retry=60 connectiontimeout=5 timeout=360

Find string yourhostname in the same file, replace all yourhostname by your FQDN server hostname. (Tip: you can get your FQDN hostname with command hostname -f.)

Restart Apache

Disable greylisting completely – iRedmail

By

On June 28, 2016

In iRedmail Mailserver

iRedMail is:
1. A ZERO COST, fully fledged, full-featured mail server solution. All components are free and open source software
2. It support unlimited domains and email accounts.
2. SpamAssassin, ClamAV, SPF, DKIM, greylisting, whitelisting, blacklisting.
3. Stores mail accounts in your favourte backend: OpenLDAP, MySQL, MariaDB, PostgreSQL.
4. Supports major Linux distros

You know how difficult is to configure a fully fledged email service you have tried. iRedmail do this heavy part for you. I would recommend this piece of software to everyone. I used to configure email server manually using Postfix, Postfixadmin, MySQL, SpamAssassin, etc. Even though I have done this several times, it needs 2-3 hours for setup. But iRedmail can do all of this and MORE in few minutes, thus saves lot of time.

How to disable greylisting completely

Greylisting is a method of defending e-mail users against spam. A mail transfer agent (MTA) using greylisting will “temporarily reject” any email from a sender it does not recognize

To disable greylisting completely, please remove plugin name greylisting in iRedAPD config file
/opt/iredapd/settings.py, parameter plugins =:
plugins = […, ‘greylisting’, …]

Restarting iRedAPD service is required.

Reject outgoing Spam – iRedmail server

By

On June 28, 2016

In iRedmail Mailserver

iRedMail is:
1. A ZERO COST, fully fledged, full-featured mail server solution. All components are free and open source software
2. It support unlimited domains and email accounts.
2. SpamAssassin, ClamAV, SPF, DKIM, greylisting, whitelisting, blacklisting.
3. Stores mail accounts in your favourte backend: OpenLDAP, MySQL, MariaDB, PostgreSQL.
4. Supports major Linux distros

You know how difficult is to configure a fully fledged email service you have tried. iRedmail do this heavy part for you. I would recommend this piece of software to everyone. I used to configure email server manually using Postfix, Postfixadmin, MySQL, SpamAssassin, etc. Even though I have done this several times, it needs 2-3 hours for setup. But iRedmail can do all of this and MORE in few minutes, thus saves lot of time.

Reject outgoing Spam

iRedmail comes with Amavis, Spamassasin and Clamd. By default iRedmail will not block Outgoing spam message. However you can tweak Amavis configurations to reject such mails.

/etc/amavisd/amavisd.conf

Add following to $policy_bank{‘ORIGINATING’}

final_virus_destiny => D_DISCARD,
final_banned_destiny => D_REJECT,
final_spam_destiny => D_REJECT,
final_bad_header_destiny => D_REJECT,

Then restart amavis /etc/init.d/amavisd restart

This will reject all outgoing spam mails above the score

Of course tweak the spam score accordingly.

Run Postfix on multiple ports

By

On November 18, 2015

In Linux server, Postfix

Adding additional SMTP listenerports

By default postfix run on port 25 and 587(TLS). However some ISPs block port 25. In that case you can configure the postfix mail server to listen on addional ports too, for example port 26 or some random 5125.

This configuration is done in the master.cf configuration file. Edit it in your editor of choice.

This file is in the following format:

# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================

The first column is the port number that you want to listen on. The default SMTP port 25 line will read as follows:

smtp inet n - - - - smtpd

To add an additional listener port of 5125, insert the the following after the above:

5125 inet n - n - - smtpd

Save the file and restart postfix service

service postfix restart

Now you can use port 25, 587 and 5125 to connect to your mail server.

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