By default, every campaign email starts a brand-new thread. But if you've emailed some of your recipients before, you can have CMass deliver the campaign as a reply inside your existing conversation with each of them. To the recipient it reads like a natural follow-up rather than a cold blast — and it tends to land better with Gmail, too.
When to use it
Send-as-replies shines for warm outreach: prospects you've spoken with, past customers, or anyone you have prior history with. It's the natural next step as a contact warms up — the first touch starts a thread, and every later campaign lands in that same growing conversation.
How to turn it on
- 1Build your campaign as usual on the Recipients and Template tabs
- 2Open the Settings tab
- 3Under 'Send As', choose 'Replies — reply to last conversation'
- 4Launch the campaign
What CMass does for each recipient
- ▸Finds your most recent existing thread with that recipient
- ▸Sends the campaign as a reply inside that thread (keeping its subject so it stays threaded)
- ▸If there's no prior conversation, sends a normal new email instead — automatically
💡 Because Gmail threads on the subject line, a reply keeps the original thread's subject. Your campaign's subject line is used only for recipients who get a fresh new email.
✅ Pair it with follow-ups: Follow-up stages already thread into the same conversation. Combined with send-as-replies, your entire outreach to a warm contact stays in one tidy thread.