New version 2.57 has new features from V2.50 as follows.

V2.57
Added: Machine in auto-reply mode is shown as icon.
Fixed: Minor bug for file transfer.

V2.56
Added: Multiple file transfer
Fixed: Crashes when file transfer is canceled
Added: Install/Uninstall

V2.54
Added: SmartGroup reusing smart button data in Send Dialog.
Added: Option 'No sound in doze mode'.
Added: Option 'Hide email facilities'

V2.52a
Fixed: Incorrect start path with auto start
  (Unable to load address book and smart button)
Added: Option for auto-start minimized when Windows starts
Added: Automatic resend undelivered message via email
Added: Option not to notify perfect delivery confirmation.

v2.50
Added: Add multiple machine names from user list.
Added: Delete all recipients
Added: Add recipient using enter key from manual edit box
Fixed: Wait acknowledge from email recipient in vain.

Thank you.

Bassline Software