With a name of "Block Sender" I can understand why users would expect emails to not reach their mailbox at all. This point, along with the removal of Bayesian filtering, has prompted us to change the name of this feature to "Mark as Junk". Messages that are marked as junk will be immediately removed from the Inbox and sent to the Junk Email folder. They will never be permanently deleted from the mailbox. This behavior follows suit with other common email services, which move messages that are marked as spam to the spam/junk folder.
For those worried about users getting rid of valid email, blocked email can be recovered from the Junk Email folder or message archiving, if that's enabled. The confirmation modal should also help to clearly explain to users what will occur.
That said, at this time, we are not inclined to allow users to modify the action of the block action. Flexibility within the product is almost always welcome; however, it's not always necessary and can often result in bloatware of settings or functionality. This feedback is part of what has prompted the plan to create a new email option for "Create Filter". This new feature will allow us to keep one standard behavior for Mark as Junk / Mark not Junk, while still allowing users the flexibility of quickly creating their own filters.
Keep in mind that we are open to modifications to this behavior and we have created a centralized thread to continue the discussion. (Other threads related to this topic will be locked.) Please join the conversation here or Subscribe for updates:
Andrea Free
SmarterTools Inc.
877-357-6278
www.smartertools.com