Sendstack
Your first campaign can send this week.
01
Connect a sender
SMTP or IMAP, verified on the spot. Warmup starts immediately.
02
Import your leads
CSV in, duplicates and unsubscribes filtered out.
03
Write three short emails
Steps stop on reply. Replies land in one queue.

Self-hosted · your data on your infrastructure

Create your workspace

Start sending in minutes.

This workspace is already set up.

Sign-up closes once the first operator exists — accounts have full access to stored sending credentials, so they're added by an admin (npm run user:create). Log in instead.

Already have a workspace? Log in