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DNSTECHNICZNE
TechnicalHow it works under the hood

DNS — MX record

Mail Exchanger

Points to the mail servers that receive email for a domain, along with priorities — a lower number indicates higher priority.

Why it matters

All incoming email depends on this single record. When switching email providers, it’s this record that redirects mailboxes.

What's missing without it

Without an MX record, email sent to addresses in this domain bounces back to the sender. Newsletters sent from a domain without an MX record may trigger spam filters.

When it is used

When setting up business email, migrating to Google Workspace or Microsoft 365, or launching newsletter sending from your own domain.

How we use it

10 mail1.nazwa-domeny.pl, 20 mail2.nazwa-domeny.pl — the second server takes over traffic if the first one is unresponsive.

Numbers worth knowing

Technical in data

26%

Prognozowany udział w pełni elektrycznych pojazdów (BEV, bez hybryd) w europejskim parku samochodowym do 2035 roku, w porównaniu z 4% w 2025 r.

BCG2035Europe

88%

Meta podaje, że ponad 88% z 137 000 usuniętych reklam oszukańczych w Polsce zostało wykrytych automatycznie przed zgłoszeniem.

Meta09/2026Poland

2 500 000 000 000 USD

Prognozowane światowe wydatki na AI w 2026 roku.

Gartner2026global

Figures from the same field — collected in our market data base.

Related terms