as far as I know, you can't hide it, see:
https://archive.org/post/1109019/my-email-is-in-a-metaxml-file-and-have-concerns
you can use one of these throwaway e-mail providers :
https://privacydev.net/email_providers.html
remember to use your fav password manager!
epicshitposter
npub1f7…j0aan
2024-07-04 06:17:30
in reply to nevent1q…5rzh
Author Public Key
npub1f7g9m4lmugc0v53kgnsnq8s8m8eu4aygq6f3m0mhm7sll8nqhntq9j0aanPublished at
2024-07-04 06:17:30Event JSON
{
"id": "ccdc56f036edd25444943f08d7da5e38143b2de92753a0fc8bb645392ceee7c5",
"pubkey": "4f905dd7fbe230f6523644e1301e07d9f3caf48806931dbf77dfa1ff9e60bcd6",
"created_at": 1720073850,
"kind": 1,
"tags": [
[
"e",
"dfc885ec86f28a7aab475f7f9e24be1ee83ea12a50f9cd0ddc0be577ebc956ca",
"",
"root"
],
[
"p",
"8ebebf50e4b98c8013ce62dc0cc4802770b46439bf90c4ed172d772f418737d3"
],
[
"r",
"https://archive.org/post/1109019/my-email-is-in-a-metaxml-file-and-have-concerns"
],
[
"r",
"https://privacydev.net/email_providers.html"
]
],
"content": "as far as I know, you can't hide it, see:\nhttps://archive.org/post/1109019/my-email-is-in-a-metaxml-file-and-have-concerns\n\nyou can use one of these throwaway e-mail providers :\nhttps://privacydev.net/email_providers.html\n\nremember to use your fav password manager!\n\n",
"sig": "f415133d01e260c63764e104e0643b69c72c6b7ab8be087e7d4e6c2f1e87f4de8f97bdb2c999725031b07127867376f0255afb94470edf7b47ec784d6ddc9267"
}