Pemeriksa record SPF
Pemeriksa SPF: waca record SPF domain, dhaftar mekanismene lan etung DNS lookup dibandhingake watesan 10.
Queries go to Cloudflare’s public DNS over HTTPS service when you press the button. Up to 15 queries are made to follow include records.
Babagan Pemeriksa record SPF
Pemeriksa SPF: waca record SPF domain, dhaftar mekanismene lan etung DNS lookup dibandhingake watesan 10.
Bagean saka seksi “Data & jaringan” SmartCalcy. Lumaku ing browser panjenengan tanpa akun, nganggo mata uang lan satuan panjenengan dhewe (ganti ing sisih ndhuwur kaca), lan menehi perkiraan mung kanggo informasi, mula priksa pandhuan resmi sadurunge ngandelake asile.
Carane nganggo Pemeriksa record SPF
Apa sing dietung lan kapan nganggo
Maca cathetan SPF sawijining domain, yaiku daftar server sing diidini ngirim email kanggo domain kasebut, lan mriksa kesalahan umum: luwih saka siji cathetan, kebijakan “all” sing ora ana, lan luwih saka 10 panelusuran DNS, sing nggawe SPF gagal. Ngetutake cathetan include kanggo ngetung panelusurane.
Carane nganggo, langkah demi langkah
- Lebokna domain, contone example.com.
- Pencet “Priksa SPF”.
- Waca putusan lan cacahe panelusuran DNS sing digunakake saka 10.
- Tinjau daftar mekanisme lan peringatan yen ana.
Tegese saben input
- Domain jeneng – The domain used ing the sender’s address.
Carane maca asile
- Verdict – Looks valid, or Needs attention when a problem is found.
- Policy – What happens to mail from servers that are not listed: hard fail, soft fail, neutral or allow.
- DNS lookups – Lookups needed by include, a, mx, ptr, exists and redirect terms, compared with the limit of 10.
- Mechanisms – Every term in the record, with included records indented beneath their parent.
Rumus
The record is the TXT value starting v=spf1. Each include, a, mx, ptr, exists or redirect term costs one DNS lookup, and included records add their own. ip4 and ip6 terms and “all” cost none. The RFC limit is 10 lookups.
Conto petungan
v=spf1 include:_spf.example.net a mx -all uses three lookups for its own terms plus those inside the included record, and ends in -all, so unlisted servers are rejected.
Asumsi lan watesan
- At most 15 queries are made while following includes, and nesting stops after 5 levels.
- A domain may need a record only for mail it sends. Domains that send no mail should publish v=spf1 -all.
- The check does not test whether a particular server would pass.
Kesalahan umum
- Publishing two SPF records. Only one yaiku allowed, so gabung them into one.
- Ending with +all, which lets anyone send as your domain.
- Adding every email service as an include and passing 10 lookups, which turns SPF into a permanent error.
Pitakonan sing kerep ditakokake
Apa iku SPF?
Sender Policy Framework iku cathetan DNS sing nampilake server sing diidini ngirim email kanggo sawijining domain.
Apa bedane -all lan ~all?
-all njaluk panampa nolak pangirim sing ora kadaftar. ~all njaluk panampa nampa nanging menehi tandha mail minangka curiga.
Kenapa ana wates 10 panelusuran?
Supaya sawijining cathetan ora meksa panampa nindakake rantai panjaluk DNS sing dawa. Ngluwihi wates iki nggawe SPF ngasilake kesalahan permanen.
Apa SPF cukup kanggo nyegah spoofing?
Ora. Gunakake bebarengan karo DKIM lan DMARC.
Apa piranti iki ngirim email?
Ora. Mung maca cathetan DNS.