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I have a use-case where user A can send user B a message from our website, which I am using SendGrid to send the message in an email. Then user B can reply to the email with their message and I would like that message to be received at user A’s email. I have been able to setup sending the email from user A to user B with no problems, but I can’t see in the documentation how to configure the email from user B back to user A. Additionally, if there is a conversation back and forth between both users then I would like to keep that in the email thread. Surely this is possible with SendGrid?

marcusturewicz
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  • Did you try using the header fields such as Message ID or unique arguments for this? https://docs.sendgrid.com/for-developers/sending-email/unique-arguments – AliAvci Nov 29 '22 at 21:31

1 Answers1

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I have been using replyTo like this:

const message = {
  to: '[email protected]',
  replyTo: '[email protected]'
  bcc: ['[email protected]'],
  from: '[email protected]',
  text: 'email',
  html: '<strong>email</strong>',      
  substitutions: {
    // key-values pairs for substitutions
  }
}
Ben Cochrane
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