protonmail.ch
The domain protonmail.ch answers at IP address 185.70.42.21. That address belongs to Proton Technologies AG, based in Switzerland. Mail for protonmail.ch goes through 2 servers; the highest priority one is mail.protonmail.ch. It also publishes 5 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 185.70.42.21 263s
MX MX records
- 5 mail.protonmail.ch 722s
- 10 mailsec.protonmail.ch 722s
NS NS records
- ns3.protonmail.ch 464s
- ns2.protonmail.ch 464s
- ns1.protonmail.ch 464s
TXT TXT records
- google-site-verification=-5wo7THYiFWoq_XABAwEtMrcTdjtiNBHrmBlIWtocqM 1200s
- abuseipdb-verification=SLIfh7Wm 1200s
- google-site-verification=XFWl0NLw1rOXu2_PafVbnwk1cCd2Oz-cpfwM2crfrYM 1200s
- v=spf1 include:_spf.protonmail.ch ~all 1200s
- mailru-verification: f224f0d86fde9b63 1200s
SOA SOA records
- ns1.protonmail.ch 1200s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 19 hours ago.