Fastmail Discount: 25% for first year
 

This has been advertised on both the Fastmail and 1Password websites, along with the announcement of Masked Email:

Here's the links:

Fastmail
1Password

I've not found any mention of how long this discount of 25% is valid for - I've asked Fastmail on Twitter yesterday if there was an end date, but no response from them at time of writing this post.

In the meantime . . .

As far as I can see, there is nothing to stop anyone (as a new user) to just use the links individually - for example: sign up for Fastmail, don't sign up with 1Password - and still get the 25% discount.

There must be an end date for this offer, otherwise the current Fastmail 10% referral discount would be useless.