Share the experience of email done right with the Fastmail referral program.

For every user you refer to Fastmail via your special link, you receive free credit on your account, and they receive a 10% discount for a full year!

How it works

For you:

  1. Find your referral link by going to Settings → Refer a friend!.
  2. Share the link with friends, family, colleagues, or the world!
  3. Earn account credit, paid monthly, for every referred user in their first year. (See below for more information.)

For everyone you refer:

  1. They click on your referral link.
  2. They sign up for a Fastmail account.
  3. When they go to pay for their plan, they will have a 10% discount. For one year, they receive this discount on all purchases made.

If you refer someone who is unable to use the referral link successfully, they can raise a support ticket. If they are able to provide us with your username or referral link, Support can add you as their referrer, ensuring that they get the discount and you get the referral credit.

Referral credit

Your referral credit is calculated based on the average number of users per month, at each plan level:


$0.30 per user per month


$0.50 per user per month
Professional $0.90 per user per month

Referral credit for users that you refer on or after April 8, 2024:


$0.30 per user per month


$0.50 per user per month


$0.50 per user per month


$0.50 per user per month

Business Basic

$0.30 per user per month

Business Standard

$0.50 per user per month
Business Professional $0.90 per user per month

For example, imagine a user named Ricardo. Ricardo is friends with lots of people. Ricardo shares his referral link. Six family members join on a Basic plan, two family members join on a Standard plan, and one person from his sports team converts their small business (with 15 people) to a Professional plan.

Each month in his friends' first year, Ricardo earns the following account credit: (6x $0.30) + (2x $0.50) + (15x $0.90) = $1.80 + $1.00 + $13.50 = $16.30

A history of referral credit that you have earned for your account is shown at Settings → Refer a friend!. It will also appear on your payment history list at Settings → Billing & Plan.

What else you need to know

  • Active paid accounts only: Credit is only earned for referred users who keep active accounts in good financial standing, e.g. not locked, not closed, not with amounts owing. If a referred user closes their account within the first year, you no longer earn account credit. Likewise, if an account is locked for violations of Terms of Service, you won't continue to earn account credit. Note: At this time, referrals are not available to new Fastmail customers who have opted into our new billing plans.

  • Requesting payout: If you earn more than $100 of referral credit, you can raise a support ticket and request to have your credit paid out to your PayPal account. Payment is at Fastmail's discretion.

  • Credit is pro-rata: Referral credit is calculated based on the average number of users at a given plan level in a calendar month, pro-rated. If a user joins on the 15th, then they qualify for 0.5 of their plan's referral credit amount. If a referred user upgrades their plan from Basic to Professional on the 10th of a month, then they earn 0.333 of a Basic credit and 0.667 of a Professional credit.

  • End of month calculation: Referral credit is calculated on the last day of the month and the amount is applied to your account balance.

  • Who can refer: Only account administrators can generate referrals or earn referral credit.

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