A: Yes, We have plans to roll out a lot of useful integrations. Sendgrid and Mailgun will be released with the option to send emails via your own domain to make it more personalized. This can be expected by the end of Q2 this year.
So keep tuned and any other feature that you would like please post in the ideas tab on our website (Roadmap): https://cardclan.io/roadmap.

Thanks :)