v0.7.0

What's Changed

• Introduce interface mailfilter.Trx and a testing implementation testtrx.Trx by @d--j in https://github.com/d--j/go-milter/pull/4

Breaking Change

Switching the transaction to be passed as interface instead of a struct means library users can not call direct public fields on the transaction anymore. All public fields were changed to methods of the same name.

Full Changelog: v0.6.6...v0.7.0