v0.3.2

Merge pull request #10 from Hermsi1337/maint/close-conns

close connections after sending email

v0.3.1

Merge pull request #9 from Hermsi1337/bugfix/debug-logging-optional

Make debug and logging optional

v0.3.0

Merge pull request #8 from Hermsi1337/feature/debug-by-policy

add possible debug enabling by smtp policy