About
Mailcentr builds email infrastructure for teams that need inbox placement, not just volume.
Mailcentr is an email infrastructure company. We help teams send mail that reaches the inbox, watch reputation, and scale outreach without burning domains.
The site you are reading is the public notebook: deliverability, SMTP, authentication, and cold outreach, written for operators who already send at volume.
What we work on
- SMTP relay and sending paths
- IP warmup and reputation
- Authentication (SPF, DKIM, DMARC)
- List hygiene and complaint control
