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SMTP Authentication Settings

 

The 'SMTP Authentication Settings' screen allows administrators to configure the user authentication type for outgoing mails.

  • To open the 'SMTP Authentication Settings' screen, click the 'SMTP' menu item on the left then 'SMTP-AUTH' then open the 'SMTP Authentication Settings' tab.




SMTP Authentication Settings – Table of Parameters

Parameter

Description

Enable SMTP Authentication

If enabled, admins can use this interface to configure an SMTP authentication method for senders.

Only allow SMTP AUTH with TLS

If enabled, authentication must be conducted over a secure TLS connection.
 Fake Sender Control Will block fake senders.

Authentication Method

Select the user authentication method from the drop-down. The options available are POP3/IMAP and LDAP/AD. The settings fields depend on the options chosen. Refer to 'POP3/IMAP Authentication Method' and 'LDAP Authentication Method' for details on the respective settings.

Connection Timeout

Enter the time in seconds during which authentication between the client and the POP3/IMAP/LDAP server must be completed. The user will be prompted to enter credentials again if the time elapses.
 Envelope sender must match SMTP-AUTH username  KoruMail checks whether the envelope sender name and username is same. KoruMail authenticates the users via the servers added in the SMTP-AUTH server list.

If enabled, you have to select any of the authentication type below:

SMTP-AUTH username format:
  • Username – Enter the domain in the default domain field. KoruMail appends the domain to the username and checks in the SMTP auth servers.
  • Domain – Select the domain format. KoruMail checks the usernames for all domains in the SMTP auth servers.

POP3/IMAP Authentication Method

SMTP-AUTH server list

Authentication method

Select authentication method - either POP3 or IMAP.

Connection type

Select the type of connection (clear text or encrypted SSL/TLS).

Hostname

Enter the server name or IP address of the SMTP-AUTH server.

Port

Enter the port of the server to which KoruMail should connect to.

Enabled

Activate or disable the server.

Action



Click this button to add an SMTP-AUTH server to the list after configuring all parameters.



Allows administrators to delete an auth server from the list.



Allows administrators to edit the parameters of an auth server.

LDAP/AD Authentication Method

LDAP Profile

Select the type of LDAP profile from the drop-down. The profiles available are configured in LDAP/DB section.

Configure SMTP authentication settings 

  • Select the 'Enable SMTP Authentication' check box
  • Select the 'Only allow SMTP AUTH with TLS' check box to allow only encrypted SMTP AUTH sessions
  • Select the 'Fake Sender Control' to block fake sender email address in the SMTP Server.
  • Enter the time in seconds after which the SMTP Auth session will end.

POP3/IMAP Authentication Method

  • Authentication method – Select the POP3 or IMAP type of authentication method from the drop-down.
  • Connection type – Selection the type of connection, whether it should clear text or encrypted. The options available are 'Plain', 'SSL' and 'TLS'.
  • Hostname – Enter the IP address or the server name of the SMTP AUTH server.
  • Port – Enter the port of the server to which KoruMail should connect to.
  • Click the  button to add the server to the list.
  • Repeat the process to add more auth servers.




  • You can change the server order by dragging and dropping them.
  • To edit the details of an auth server, click the button.




  • Edit the parameters as required and click the 'Save' button.
  • To delete an auth server from the list, click the  button and click 'OK' in the confirmation dialog.
  • Click the 'Save' button to apply your changes.


LDAP Authentication Method

  • LDAP Profile – Select the type of LDAP profile from the drop-down. The profiles available here are configured in LDAP/DB section.




  • Click the 'Save' button to apply your changes.