Do you have a Zapier integration?

Yes, we offer a Zapier integration available here: Missive + Zapier. It offers those triggers/actions/searches:

Triggers:

1. (Instant) New Message (Email, SMS, etc.)
2. (Instant) New Comment
3. New Contact Book
4. New Contact Group
5. New Contact

Actions:

1. Create Post
2. Create/Send Draft
3. Create Contact
4. Update Contact

Searches:

1. Find a Contact
2. Find or Create Contact