{
    "domain": "protonmail.ch",
    "mx": [
        "mail.protonmail.ch",
        "mailsec.protonmail.ch"
    ],
    "spf": "v=spf1 include:_spf.protonmail.ch ~all",
    "dmarc": "v=DMARC1; p=quarantine; fo=1; aspf=s; adkim=s;",
    "dkim": null,
    "bimi": "v=BIMI1; l=; a=;"
}