Activate MMS

Enable MMS messaging on your account.

Laura Russell avatar
Written by Laura Russell
Updated over a week ago

Before you start

Things you need to know:

  • MMS messages can only be sent to recipients with US or Canadian mobile numbers attached to a US or Canadian network.

    For example, a US number being used in the UK, and therefore connected to a UK network, won’t receive MMS.

  • MMS messages can only be sent from a verified US or Canadian toll-free number, 10DLC or short code.

  • The timescale for setting up an account to send MMS depends on whether you already have an SMS capable number which can be adapted for MMS sending:

    • If you do already have an adaptable SMS number, set up time for MMS is around 1-2 weeks.

    • If you do not already have an adaptable SMS number, set up time for MMS is around 8-12 weeks.


MMS allows you to include media, as well as emojis and other Unicode characters, in your messaging.

Supported media types for MMS are .jpg, .jpeg, .png and .gif.

Compared to SMS, MMS can provide increased click-through and conversion rates. You can track the success of your MMS sends with our campaign and revenue reporting features.


Enable MMS

There are two ways to enable MMS on your account:

1. Contact your Customer Success representative

You can speak directly with your Customer Success rep and request that your account be set up for sending MMS.

They work with the relevant Dotdigital teams to begin the setup process for you.

2. In app

Purchasing MMS capable numbers

You can’t use the in-app number purchase feature to purchase MMS-capable numbers. To purchase a number for MMS sending, contact your Customer Success representative.

If your user profile has access to the SMS editor, then you can activate MMS directly from your Dotdigital account.

To do this:

  1. Go to Campaigns > SMS.

  2. Select NEW CAMPAIGN, enter a campaign name, then select SAVE.

  3. For Message type, select MMS.

  4. Read the information and then select ACTIVATE MMS.

  5. You see a confirmation message that your request has been received. A member of the Dotdigital team will reach out to you to assist in setting up MMS for your account.

⚠️Sending from unverified or unmigrated numbers⚠️

During the set-up process, you may see the MMS editor become available to you. However, you must wait until your Customer Success representative has confirmed that your account is ready to send MMS.

If you begin sending before your number is verified (for newly purchased numbers) or migrated (for existing numbers) these sends won’t be delivered but will be charged for.

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