We deliver email to the providers SMTP server, we do NOT SEND email. When we deliver email the time for /send to complete is dependant on:
- Attachments, these are uploaded.
- Providers sender AV / SPAM checks
If a providers response is longer than others, please contact the providers mail administrator.
Once we receive a 200 response from the provider this means it has been delivered, not sent / received by the recipient.
Consider using the Outbox endpoint to handle email delivery, this will return a 200 immediately.
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