Extend maximum attachment name length.
Fixed attachment names prematurely truncated by NewLines.
Clarified comments for Export options in narc header.
Give status icon in Viewer template a name
Increased max attachment filename length from 64 to 255 for RO4+
Tag of version 3.20 (20 Jan 2024) release
Bumped version to v3.19f (14 Jan 2024)
Addition of a Generic email transport.