Owl550

Create and Choose a return formula to undesirables (like this famous reply 550 of servers that says an e-mail address does'nt exist: "Undelivered Message"). Modify the time interval between 2 reads of servers. Choose sound alerts (friends, undesirables, unknown, connections). Preset and save friends and undesirables, by address or by server. See e-mail content before download. Delete and return e-mails automatically. Import the accounts already existing (Thunderbird).

What is new in this release:

In version 3.1, you can send an e-mail indicating that your address does not exist

Limitations:

Limited to single account