Guides

Email security guides

Short, practical how-tos for the questions people actually search: where the headers are, what DMARC fail means, how to report a scam.

How to view full email headers

Find the full headers in Gmail, Outlook, Apple Mail and Thunderbird, and what to do with them.

How to save an email as an .eml file

Export a message with its headers and attachments from Gmail, Outlook, Apple Mail and Thunderbird.

DMARC fail, SPF fail, DKIM fail: what they mean

Why a message fails authentication, why forwarded mail often does, and when a fail points to spoofing.

How to tell if an email is phishing

A practical checklist: sender, Reply-To, links, urgency, attachments, lookalike domains, and when to escalate.

How to report a phishing email

Report phishing in Gmail and Outlook, to the impersonated brand, to CERT Polska, and to national agencies abroad.

I clicked a phishing link: what to do

Steps to take right now if you opened a link, entered a password or opened an attachment.

Next step

Got a message you are unsure about?

Paste its source or upload the .eml or .msg file. AntiBait checks SPF, DKIM, DMARC, links and attachments and explains the verdict.