Mailcore Editorial Team
DNS without the mystery
Clear explanations of mail DNS records, domain authentication, delivery issues and ways to verify a real message route.
Articles in this column
MX, SPF, DKIM and DMARC backed by verifiable primary sources.
Fundamentals
Your Own Mail Server or Cloud Email: Which Should You Choose?
A comparison of self-hosted and managed cloud email by cost, control, security, deliverability, and migration.
Guides
Business Email in Uzbekistan: An IT Checklist
A technical checklist for developers and administrators evaluating an email service in Uzbekistan, preparing DNS, and accepting a migration.
DNS and security
Email MX Records: Configuration and a Safe Switchover
How MX records, priorities, and TTL work—and how to switch an email route safely without assuming DNS updates are instantaneous.
DNS and security
SPF, DKIM, and DMARC: Authenticating an Email Domain
A clear guide to three email-authentication mechanisms: what each one checks, how domain alignment works, and where configuration errors arise.
Deliverability