Custom header support

Issue #11 new
Anonymous created an issue

I'd like to have a way to add custom X-Headers. For example, see SendGrid's documentation for category tracking by using an X-SMTPAPI header:

Comments (2)

  1. Anonymous

    Please add this. Especially not being able to include a Reply-To header is a problem when using it for a contact form (where you usually want your noreply address as "From" but the user's email address as "reply to")

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