Fastmail integration issue

Hi @MikeMikeMike:

Thanks for letting us know about you running into some issues. I've split your conversation off into a new thread so we can make sure conversations are staying focused.

Would you mind trying this set of steps for me? --

1. Disable the integration in Fastmail by selecting "Review access" in the 1Password row, then "Remove access": https://www.fastmail.com/settings/masked
2. Disable the integration in 1Password, by selecting the Fastmail entry, then "Deactivate Fastmail" : https://my.1password.com/integrations/active
3. Enable the integration in Fastmail: https://www.fastmail.com/settings/masked
4. After signing in to 1Password again to confirm the integration, verify that your Fastmail email address is shown in the Integration directory again: https://my.1password.com/integrations/active

Please let me know if after doing these steps you're able to see "Create masked email" on https://omny.info/register

Cheers!