First, head over to and search for MailPlus.

Click on the green "Integrate" button and you will be redirected to the following screen:

Login to MailPlus and go to the tab "MailPlus settings". Afterwards click on "MailPlus REST API" and copy the Key & Secret into the fields Key & Secret in Datatrics.
If you want to update your MailPlus profiles with Datatrics fields select yes.

After saving the settings Datatrics will synchronize all Contacts.

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