In an effort to help your company's name get better recognized in your customers' inboxes, we've added a title field to email accounts that can be customized to your heart's content.
All you need to do is go to Firehose Settings and either create a new email account or update an existing one. Fill in the new title field with whatever you like:
This is what your customers will see when they receive an email from you in Apple Mail:
And in Outlook.com to demonstrate a few: