v0.3.1

fix(auth): chose PLAIN or LOGIN as advertised

v0.3.0

feat: format email according to RFC 5322

v0.2.3

fix(viper): config flags binding

v0.2.2

build: avoid linking with host resolver

v0.2.1

Add README.
Fix some flag misbehavior.

v0.2.0

Tested with STARTTLS.
Vendored deps.

v0.1.0

It should work.