Email header analyzer
Email header analyzer: paste the full headers a message sampai see who sent it, the servers it passed through, delays between hops, dan the authentication Hasil.
Analysis happens di your browser. Nothing adalah uploaded. In Gmail choose “Show original”, di Outlook open the message properties.
Tentang Email header analyzer
Email header analyzer: paste the full headers a message sampai see who sent it, the servers it passed through, delays between hops, dan the authentication Hasil.
Bagian dari bagian “Data & jaringan” SmartCalcy. Berjalan di peramban Anda tanpa akun, memakai mata uang dan satuan Anda sendiri (ubah di bagian atas halaman), dan memberi perkiraan hanya untuk informasi, jadi periksa panduan resmi sebelum mengandalkan hasilnya.
Cara menggunakan Email header analyzer
Apa yang dihitung dan kapan digunakan
Reads the full headers an email dan shows the route it took, the delay Pada Per buah server,, dan the SPF, DKIM, dan DMARC results. It also flags signs spoofing, such as a sending domain that differs from the From address. Everything happens di your browser.
Cara menggunakan, langkah demi langkah
- Open the email’s raw headers: di Gmail choose “Show original”, di Outlook open the message properties.
- Salin everything above the Pesan body dan paste it into the dus.
- Read the authentication Hasil dan the route, oldest hop first.
- Check the warnings seharga domain mismatches.
Arti setiap input
- Email headers – The complete header block, starting with baris such as Received:, dan Dari:.
Cara membaca hasil
- Authentication – SPF, DKIM, dan DMARC Hasil taken Dari the receiving server’s Authentication-Results header.
- Pesan Detail – Dari, Sampai, Tanggal, Message-ID, Return-Path, Reply-To, dan mailer.
- Route – Per buah server hop, its address, dan the Waktu added between hops.
- Warnings – Domain mismatches dan failed checks.
Rumus
Received headers are added at the top by each server, so they are read bottom sampai top. The delay at a hop adalah its timestamp minus the previous hop’s. Total delivery time adalah the last timestamp minus the first.
Contoh perhitungan
A Pesan with spf=pass, dkim=pass, dan dmarc=pass sent from the same domain as its From address, delivered di 5 seconds across 2 hops, shows no warnings.
Asumsi dan batasan
- The receiving server’s Authentication-Results header adalah trusted. Earlier Received baris kaleng be forged by a sender.
- Waktu stamps use Per buah server’s own clock, so small negative delays kaleng appear.
- Tidak ada adalah uploaded.
Kesalahan umum
- Pasting only part the headers.
- Trusting the From name. It adalah easy sampai fake, so check the domain, dan authentication Hasil.
- Treating a failed SPF as proof fraud. Forwarded mail often fails SPF.
Pertanyaan yang sering diajukan
How Aksi I Cari the headers di Gmail?
Open the Pesan, choose the three-dot menu, then “Tampilkan Asli”,, dan Salin the header text.
What Aksi SPF, DKIM, dan DMARC Rata-rata?
SPF checks the sending server. DKIM checks a signature on the Pesan. DMARC says what sampai Aksi when they Aksi not match the Dari domain.
Kaleng headers be faked?
Baris added by the sender kaleng, but the topmost Received baris, dan Authentication-Results Dari your own provider are reliable.
Is my email uploaded?
Tidak. The headers are analysed di your browser.