Did you know: FastMail has an excellent Android app which many of our users prefer to other mail apps. See our mobile app help for more details.
Android apps need their own app password to access your information. If you use your normal password or your FastMail two-step verification password on an external account, syncing to an external service won't work and you will see a password error.
Email – Mail (default mail application in Android 5.x Lollipop and Android 6.x Marshmallow) Email – Mail (native mail application, available in Android 4.x and earlier)
Calendar
Contacts
Note
Set up your email - Gmail
Open the Gmail app.
If you don't already have an account set up, the Account setup dialog appears
and tap Add Account.
Set the email type to Personal (IMAP/POP)
Enter your email address: this is your full FastMail username, including the domain.
Enter your app password. (What's an App Password?)
Set the incoming server settings.
Server is imap.fastmail.com
Security type is SSL/TLS.
Set the server settings for outgoing mail.
Server is smtp.fastmail.com
Security type is SSL/TLS
Password should be pre-filled: it's your app password. (What's App Password?)
The server will verify your settings, then allow you to configure the account options and set your name. You're ready to go!
Set up your email – Mail
The native Android Email app is available only if you are on a device running an operating system earlier than Lollipop If you are on Lollipop or later, you will need to use the Gmail
Configuration instructions.
Open the Email app. If you don't already have an account set up, the Account setupdialog. should appear. Otherwise, open the app's menu, then go to Settings and tap Add Account.
Fill in your email address and password:
Email address: Your full FastMail username, including the domain.
Password: Your app password. (What's an App Password?)
Tap Next.
Tap IMAP.
Change the server, port and security type for your incoming mail:
Server: imap.fastmail.com
Port: 993
Security type: SSL/TLS
IMAP path prefix: (leave blank) This setting may not appear on older Android phones. If you don't see it, don't worry, it'll still work fine.
Your screen should look like this:
Tap Next.
Change the security type for your outgoing mail:
Security type: SSL/TLS
* Port*: Change to 465
Your screen should look like this:
Tap Next.
If you like, change the Inbox checking frequency (or leave it set to the default every 15 minutes), then tap Next.
Fill in your name:
Your name: The name people will see on the email you send.
Tap Next.
Your FastMail account is now ready to use.
Android does not support CalDAV natively, however you can easily add support by installing a CalDAV sync adapter. We have tested and recommend CalDAV-Sync, which is approximately $3. Once you have added your account in CalDAV-Sync, you can use the native Android calendar or any other calendar app and the changes will sync with FastMail.
You will need to use an app password when configuring the app.
If the standard auto-discovery url of doesn't work, try
Android does not support CardDAV natively, however, you can easily add support by installing a CardDAV sync adapter. We have tested and recommended CardDAV-Sync, which is approximately $3. Once you have added your account in CardDAV-Sync, you can use the native Android contacts or any other contacts app and the changes will sync with FastMail.
You will need to use an app password when configuring the app.
If the standard auto-discovery url of doesn't work, try
Be aware that any pre-existing contacts already on your device do not automatically get copied back up to FastMail with the sync: you need to import them to FastMail first.
After using above FastMail server settings for Fastmail and on other email applications, you’ll be able to set up or synchronize your Fastmail on other email apps. Hope this content, solves your Fastmail settings issue for Fastmail. If you need specific help and support to configuring your email app, then you can contact Fastmail Support Help Service help and manufacturer of the third-party email application.
