Cold email infrastructure for teams that outgrow one inbox
Bulawa splits every campaign across the SMTP servers you connect, rotates sends to stay under provider limits, and shows you exactly what happened to each message — opened, clicked, bounced, or unsubscribed.
Connect any number of SMTP or cPanel accounts, set a rotation size and a daily cap for each, and let a single campaign spread its sends across all of them. Bounce handling runs over IMAP, so soft and hard bounces get tracked back to the server that produced them.
| SMTP server | Emails / rotate | Daily limit |
|---|---|---|
| server1.mailhost.com | 50 | 100 |
| server2.mailhost.com | 100 | 1,000 |
| server3.mailhost.com | 200 | 10,000 |
| server4.mailhost.com | 300 | 500 |
| server5.mailhost.com | 400 | 1,000 |
| server6.mailhost.com | 1,000 | 25,000 |
Group subscribers into lists, tag them for filtering, and import or export any list as a CSV whenever you need to.
Write up to a dozen subject-and-body versions per campaign and set how many sends happen before the next version takes over.
Drop in first name, company, industry, city, or any of thirteen subscriber fields — Bulawa fills them in per recipient.
Narrow a list by industry, designation, or any subscriber field, or leave it open to reach everyone on the list.
Add every SMTP account you've got, set a rotation and daily cap for each, and Bulawa spreads the campaign across all of them.
Connect IMAP alongside SMTP and bounces get read and matched back to the message that caused them automatically.
Every open, click, bounce, and unsubscribe rolls up onto one dashboard, refreshed continuously while a campaign is sending.
Name the campaign and pick which contact list it goes to.
Add filter conditions, or leave it blank to reach the whole list.
Write your subject and body, add variations, and insert personalization tags.
Assign SMTP servers, set rotation and daily limits, then save and send.