Mailbox provider
Proton Mail MX records
Proton Mail is a mailbox provider. Type any domain below to see if its email runs through Proton Mail.
Provider profile
Proton Mail
Proton Mail MX records end in .mail.protonmail.ch, .mailsec.protonmail.ch, .protonmail.ch, .protonmail.com, .proton.me. Proton Mail is a mailbox provider.
What is a mailbox provider?
A mailbox provider runs the inboxes where people read and send mail. Domains that point their MX records here have their email hosted directly by this service.
MX hostname patterns
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.mail.protonmail.ch - ·
.mailsec.protonmail.ch - ·
.protonmail.ch - ·
.protonmail.com - ·
.proton.me
Other mailbox providers
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