Bill (npub178f…3584) It's not possible to use the same custom domain on Proton Mail and SimpleLogin (but you can use a subdomain on one service and the main domain on the other).
For exporting your emails, and importing them into Proton Mail, please see this support article:
https://proton.me/support/export-import-emails
Proton Mail /
npub1me…vqane
2023-10-24 09:14:56
in reply to nevent1q…h2nn
Author Public Key
npub1mea2vwcu06qf7e4x00wd902vj54qnn2jacq76ldntrgfhtvhlpqqrvqaneSeen on
wss://relay.noswhere.comPublished at
2023-10-24 09:14:56Event JSON
{
"id": "462e438a3f2a440606126b377775874354a1c7237466ef4c07a23af60eb45261",
"pubkey": "de7aa63b1c7e809f66a67bdcd2bd4c952a09cd52ee01ed7db358d09bad97f840",
"created_at": 1698138896,
"kind": 1,
"tags": [
[
"p",
"f1d3b0ebe1c5ba3b6971b1952084c9052bc6d1eae63d7818e51855384653c905",
"wss://relay.mostr.pub"
],
[
"e",
"3fffa6d2499ce3b7454acc72af382df28fca2da78831d95f77448bc53e4fe373",
"wss://relay.mostr.pub",
"reply"
],
[
"proxy",
"https://mastodon.social/users/protonmail/statuses/111289230744163364",
"activitypub"
]
],
"content": "nostr:npub178fmp6lpckark6t3kx2jppxfq54ud502uc7hsx89rp2ns3jneyzspt3584 It's not possible to use the same custom domain on Proton Mail and SimpleLogin (but you can use a subdomain on one service and the main domain on the other).\n\nFor exporting your emails, and importing them into Proton Mail, please see this support article:\nhttps://proton.me/support/export-import-emails",
"sig": "deb3e8d46486a4f333f977ee33900d1a48ef30f4d5acd95edf38cdd14e8ddee97b4f6e9a8b391e05ae11bc663c82d236f0fc6029475664d95744f40d5e404875"
}