Provide a MessageStream parameter

[di-varela]

Postmark service

Postmark API supports to set a MessageStream which the e-mail must be sent througth.

• API Interface: https://postmarkapp.com/developer/api/email-api
• MessageStream Presentation: https://postmarkapp.com/message-streams

Use case

A use case is to allow users that send only transactional e-mail use the MessageStream dedicated for it.

Proposal

Python-postmark should provide a "message_stream" string parameter that allows to set which MessageStream to use.

[nicholasserra]

Thanks for the suggestion. Seems like a simple patch to get this in. PRs welcome! Otherwise I probably won't pick this up myself for a while.

[anulaibar]

@nicholasserra Any release planned with #94 ?

[nicholasserra]

I'll try to get a release out this week

[nicholasserra]

0.5.6 released