How to attach file in transactional email?



I want to know that how to attach pdf file in transactional mail, in every mail attach different-different pdf file.
Please provide me which email API is best for attachment and how to use.


I am having the same issue. Does anyone know if we can add attachments to transactional emails? If so, where can we find more details?

Thank you!


Have you managed to find a solution to this one?

The more I deal with Hubspot and its API the more issues appear. Has to be one of the most limited in funcionality and poorly designed APIs around…


It is not currently possible to attach a file in a Marketing or Transactional Email -

This idea has been suggested which you can upvote here -