Hostilla.pl IT glossary

What is Greylisting?

Greylisting temporarily delays mail acceptance to filter simple spam attempts.

Definition

Greylisting temporarily delays mail acceptance to filter simple spam attempts.

What does it mean in practice?

In Hostilla.pl services this term matters when configuring business e-mail, DNS records, deliverability, anti-spam filtering and user support.

A practical Hostilla.pl example

A practical e-mail check starts with the affected mailbox and domain, then compares DNS authentication, client settings and the exact SMTP or IMAP response. Greylisting gives the technician a precise name for the part of that path that must be verified.

What should you check?

  • the full mailbox address and affected domain
  • MX, SPF, DKIM and DMARC records where relevant
  • the configured server names, ports and encryption mode
  • the exact error, timestamp and message headers