To add email contacts to Mail Designer 365, open Delivery Hub and choose either manual copy and paste or CSV import. This guide explains both methods, how to assign contact attributes, and what to check before adding the contacts to an audience.
To get started, log into your my.maildesigner365 account and go to Contacts.
Add email contacts manually
Under Paste email addresses, paste your list of email addresses into the space provided, ensuring that each address is separated with a comma (,) or line break:
Next you have the option to assign placeholders to your new contacts. Placeholders represent different characteristics (e.g. language, interest, country, etc.) and tell you more about the contacts you are adding. This step is important for setting up an audience later.
Just enter a value (e.g. "Origin") into the placeholder field and click on Create new:
Then, enter a sub value (e.g. Website") and click on Create:

In this case, all the new contacts you've added will be tagged as originating from your website:

Repeat this process to add as many attributes and sub values as you like.
Then, once you are done adding attributes, hit + Add contacts to save your new contacts.
Import email contacts from a CSV file
If you have a .csv file containing email contacts, you can upload this under Import contacts by file or service:

During this step, you can also assign attributes to your contacts as described in this guide.
Video: Add Email Contacts to Mail Designer 365
More of a visual learner? We've got you. Check out this video tutorial for a step by step walkthrough.
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