Emailing at scale is tricky — one wrong setting and you’re in spam hell.
After a lot of trial and error, I finally found a setup that lets me send 10K+ emails with minimal headaches. Here’s the structure I follow:
Multiple sender accounts — Never rely on one. I rotate 20–30 accounts.
Spintax + custom templates — Every email needs to look different.
Delays between sends — I use randomized intervals to mimic human behavior.
Proxies per account — Helps avoid footprint issues when scaling.
Daily send limits — I never send more than 100–200 emails per account/day.
Desktop-based control — I prefer using a local tool (not cloud-based) so I have full control over logs, retries, and scheduling.
This setup has been super stable so far — open rates are decent, and most emails are landing inbox (not promo/spam).
Happy to share more if anyone’s working on similar cold outreach or verification workflows.