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In SendGrid batch sends, should use different message_id for each recipient #139

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medmunds opened this issue Feb 5, 2019 · 1 comment
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In SendGrid batch sends, should use different message_id for each recipient #139

medmunds opened this issue Feb 5, 2019 · 1 comment
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esp:SendGrid feature/enhancement

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medmunds commented Feb 5, 2019

(ESP: SendGrid; Anymail v3.0 and later)

Since #109, Anymail generates a unique tracking message_id for each SendGrid send.

If you are also using batch sending, the same message_id is used for all recipients in the batch. This can complicate tracking send status, etc., on individual recipient messages.

Since the message_id is implemented as a SendGrid custom_args, and SendGrid's personalizations format supports individual custom_args for each message in a batch, Anymail should generate a separate message_id for each recipient.
@medmunds medmunds self-assigned this Feb 5, 2019
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Released in Anymail v6.0.

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