medmunds e6431a62f0 Change attach_inline_image default domain from hostname to "inline". ...

This avoids problems with ESPs that don't distinguish *Content-ID*
from attachment filename, where a local hostname ending in ".com" could
cause Gmail to block messages sent with inline attachments.
(Mailgun, Mailjet, Mandrill and SparkPost have APIs affected by this.)

Fixes #112.

2018-07-06 16:30:27 -07:00

4.7 KiB

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