Connect Application: The Steps

Document created by user.oxriBaJeN4 Employee on Feb 25, 2016Last modified by user.Yo2IBgvWqr on Dec 5, 2017
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Applies To...


This page applies to new clients connecting with Mimecast using the Connect Application. If you are not using the Connect Application, click here.




Once you've logged on and confirmed your details, the Connect wizard leads you through the required steps (see the table below). Some steps are optional, while others are dependant on other tasks. When a prerequisite task is required, you'll see a notification at the top of the task page, as shown below:

Prerequisite Task
Connect Application Steps

The Connect Application is not aware of configurations made directly inside the Administration Console. All initial configuration must be made via the application, unless the default policies need altering.


Validate Your Domains

Allows you to verify that you own each of your internal domains. We start with your primary domain, but other domains can also be validated. You can also add subdomains once a domain is validated.

Synchronize Your Directory

Allows us to automatically create each user's Mimecast account. This enables your users to send and receive email and sign into our applications.

Add Users Manually

Allows you to add user accounts that do not currently exist in your directory.

Set Up User Authentication

Allows you to specify the method to be used to authenticate users when they connect to our applications.

Prepare for Inbound Email

Allows you to set up your inbound email flow through us. The process differs depending on whether you have an Office 365 or On Premise / Hybrid Exchange.

Set Up Your Outbound Email

Allows you to set up your outbound email flow through us.

Import Permitted Senders

Allows you to let us know the external addresses that you regularly communicate with. This marks them as permitted senders, thereby bypassing the strict anti-spam screening applied to all inbound emails from unknown external senders.

Set Up Recipient Validation

Ensures only messages destined for valid internal email addresses are accepted. Emails that can't be matched against a valid internal address are rejected.

Modify Your MX Record

Routes your inbound email through us by updating your mail exchanger (MX) records. This designates us as the mail service responsible for accepting email on your behalf.

Secure Your Inbound Email

Looks at securing your firewall to protect you from messages received from a non-Mimecast IP address. The process differs depending on whether you have an Office 365 or On Premise / Hybrid exchange.

Set Up Journaling

Allows you to set up journaling to ensure your Mimecast archive has a full and complete record of all email. This includes your internal email, and copies delivered to members of distribution lists.

Manage Basic Administrators (Optional task)

Allows you to add users to the Basic Administrator role so they can assist with the implementation or general account management in the Administration Console

Manage Forwarding Addresses (Optional task)

Allows you to add 'Relay' mail forwarding rules that route messages external to your organization to a chosen address.

Bypass Anti-Spoofing (Optional task)

Allows you to bypass Anti-Spoofing policies. If you use external services to send email to your internal users, you can add these services as exceptions to your Anti-Spoofing policy.

Set Up Your TLS Policies (Optional task)

Allows you to enforce TLS communication between your mail server and us, as well as between us and specified external domains. This ensures full end to end TLS communication.


Following the end of all mandatory steps, users in an On Premise environment must lock down your firewall. This is not required if you have an Office 365 or MSP Exchange, and is optional if you have a Hybrid Exchange. See the Firewall Lockdown page for further details.


See Also...