v1.10.0

Added

• Delivery-mode chooser for multi-recipient composes — when the Compose Email "To" field holds more than one address, the send confirmation now asks whether to deliver a separate email to each recipient (recipients don't see each other) or one combined email addressed to everyone, with a note that the full recipient list is visible in that case (#20, thanks @mrsafalpiya)
• EmailSender gained a notify constructor flag so callers batching multiple sends can suppress the per-send notification and show an aggregate one instead

Changed

• The send-mode help texts spell out how CC/BCC behave in each mode: in individual mode CC/BCC contacts receive a copy of every email, and in combined mode the "To" and CC lists are visible to every recipient (BCC stays hidden)
• All 59 non-English locales received translations for the new send-mode strings

Full Changelog: v1.9.0...v1.10.0