How do I send cold email without damaging my domain?
Set up SPF, DKIM and DMARC on the sending domain, send from real mailboxes at a modest daily pace that grows slowly, verify every address before it is used, and pause when bounces or complaints rise. Many teams send from a second domain so their main one is never at risk.
The basics
- Authentication records published and passing.
- A new mailbox starts slowly and grows week by week.
- Short, plain emails with few links and no attachments.
The list matters most
Bounces come from bad addresses. Verify each one, remove those that fail, and never send to bought lists without checking them.
How Striker does it
Striker sends from your own mailboxes with a daily cap per mailbox that grows as the mailbox ages, checks every address before sending, and pauses a mailbox after a run of bounces. Its deliverability page checks your domain set-up.