How to use Fastmail with Quickmail

You can add Fastmail email accounts to Quickmail to send emails from. 
To do that, you can add your Fastmail email account as a custom email account. 

Note: "Add a Custom Email Account" is currently available on Quickmail Pro accounts only

To start, go to your Fastmail account then go to "Password and Security"


Unlock the Settings:


On the same page, click "New App Password":


Select "Custom" for name and give it a name you like. Sett Access to Mail, Contacts & Calendars:


Copy your unique App Password and save it for later:


After that, login to your Quickmail Pro account. From the Settings -> Inbox page, click "Add a Custom Email Account"


Fill out the fields with your Fastmail email credentials and use the App Password (the one you obtained from Fastmail) as the User password for both SMTP and IMAP fields.

Email: Your FastMail email address

SMTP
Server Address: smtp.fastmail.com
Server Port: 465
User Login: Your FastMail email address
User Password: App password

IMAP
Server Address: imap.fastmail.com
Server Port: 993
User Login: Your FastMail email address
User Password: App password

Once added, you can set your FastMail email address as the new default email account or set it as the sending address for your sequences. How to Assign an Email Address to a Sequence