rails/rails — pull request #17044 by johanb (2014-09-24 10:09:50+00:00)
Title: Update mail dependency of ActionMailer

For your consideration:

I'm working on a Rails application that requires a newer version of the **mail** gem (2.6). In order to use this version with Rails I needed to update **ActionMailer**'s dependency to allow for this version.

* I've ran the specs against 2.6.1 with `bundle exec rake test` and have encountered no errors.
* I haven't deprecated any versions, so this should not introduce any backwards incompatibility.

Thank you in advance.