Pobox is a service of Fastmail, and we use their best-in-breed webmail service and applications. Some elements of webmail have changed since we have switched to their interface.
What's different about Fastmail
Fastmail supports both Archive and Delete.
Archive moves mail in the current folder into the Archive folder. Archived messages are kept for search or viewing in conversations.
Delete moves mail to the trash, and should be for mail destined for permanent removal. Deleted messages will not appear in searches or conversations.
All your Pobox addresses have been set up as sending identities. You can edit or remove unwanted ones from the "Send Mail As" in your Mail Accounts settings.
What's new with Fastmail
Fastmail was designed from the ground up for speed, so you should notice improved performance across the board.
Fastmail has a full suite of access options -- webmail that's optimized for a range of device sizes, plus native apps for both iOS and Android.
Fastmail has a full suite of access options -- webmail that's optimized for a range of device sizes, plus native apps for both iOS and Android.
It has speedy full text cross-folder search, and keyboard shortcuts for power users.
The calendars and contacts include invitations, improved support for use on other devices, and drag-and-drop editing.
App support (both Fastmail's webmail apps, and within your own calendar and contact apps) is available today for users with standard passwords. App support for 2FA users is coming soon.
Delete for conversations can act on all folders. To match Pobox's behavior, it is currently set to act on the current folder only. Please be aware, if you switch to the "all folders" option, Sent and Mailstore Archive folders are included in "all".