Implement merge_headers

anymail / django-anymail

Django email backends and webhooks for Amazon SES, Brevo (Sendinblue), MailerSend, Mailgun, Mailjet, Postmark, Postal, Resend, SendGrid, SparkPost, Unisender Go and more

https://anymail.dev

BSD 3-Clause "New" or "Revised" License

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Implement merge_headers #380

Closed medmunds closed 2 months ago

medmunds commented 2 months ago

Implement and document merge_headers for all other ESPs that can support it. (See #371 for base and Amazon SES implementation.)

Closes #374