Step 1: Sign in to your account at

Step 2: Search and open the Active Directory Manager.

Step 3: Scroll down on the left panel and click on Properties.

Step 4: At the bottom click on Manage Security defaults.

Step 5: Disable security default and choose My Organization is unable to use critical business applications.

Step 6: Provide the following information to the MassMailer Support team:

You should now be able to connect your account to MassMailer Inboxing Service.

First name: Email account first name
Last name: Email account last name
Email: Email account to warm up

IMAP server:
IMAP port: 993
IMAP Username: Your email
IMAP Password : Your email password