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SMTP configuration

To allow UCRM to send emails, you must configure your SMTP server.

If you use Gmail, you can use a shortcut by selecting "Gmail" in "Transport type" and only fill in username and password.

After saving the configuration, you can test the connection and send a test message. This allows you to check, that emails can be sent by UCRM.


Sender address

If the sender address is filled, it is used as the "Sender" attribute in email header. Otherwise, organization email is used and if not available the attribute is not included.

Support email address

Email address where client's messages will be sent from client zone support form.

System notification address

Email address where are sent notifications about system events (e.g. new invoice is created).

Anti-spam (SPF, DKIM and DMARC)

SPF, DKIM and DMARC are an email validation protocols providing mechanism to allow receiving email exchangers to verify that incoming mail from a domain comes from an IP Address authorized by that domain's administrators.

It is recommended to create DNS record for this protocols to prevent marking emails created by UCRM as a SPAM.


Throttler is used to limit the number of messages sent over a time interval.

The counter is reset only after the set duration passes and starts with first message sent.

For example if you set "Message limit" to 500 and "Duration" to 24 hours, UCRM will ensure maximum of 500 messages is sent within the 24 hour duration and only send more after the 24 hours passed.


AntiFlood is used to give SMTP server some time to recover after sending the given amount of messages (i.e. prevent server flooding).

This feature is only activated if the message limit is reached within the set time limit.

For example if you set "Activation threshold" to 20 messages and "Pause time" to 60 seconds, UCRM will ensure there is at least 60 seconds pause before sending more emails after the 20th message is sent. However if more then 60 seconds passed since last message was sent, the counter is reset and AntiFlood is not activated.

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