drewr/postal — pull request #24 by gerrit-hntschl (2012-04-25 14:35:24+00:00)
Title: explicit content-type 

Hi Drew,

We needed to set the content-type explicitly for attachments that are not automatically recognized by JavaMail, like pdf. When using {:type "application/pdf" ...} JavaMail chokes because of a missing data handler.
So I've added the :content-type key to the attachment map.

Cheers,
Gerrit