Jan Schaumann on Nostr: Every so often, I need to chase down some aspect of email validation (#SPF, #DMKIM, ...
Every so often, I need to chase down some aspect of email validation (#SPF, #DMKIM, #DMARC, ...). This involves a number of #DNS records and queries, but I may forget just which ones. So here's a quick #SMTP/DNS cheatsheet:
Published at
2024-04-12 20:29:22Event JSON
{
"id": "1075420db723021e7a1dd027258ceb96ff8b9efd94f83f4ff14049fd48c10682",
"pubkey": "b3087ccfbff4c2e2e16a3af148b6a3a27fe07bb1e7628b714a11e5f26711f263",
"created_at": 1712953762,
"kind": 1,
"tags": [
[
"t",
"smtp"
],
[
"t",
"DNS"
],
[
"t",
"dmarc"
],
[
"t",
"dmkim"
],
[
"t",
"spf"
],
[
"proxy",
"https://mstdn.social/users/jschauma/statuses/112260137758509021",
"activitypub"
]
],
"content": "Every so often, I need to chase down some aspect of email validation (#SPF, #DMKIM, #DMARC, ...). This involves a number of #DNS records and queries, but I may forget just which ones. So here's a quick #SMTP/DNS cheatsheet:\n\nhttps://media.mstdn.social/media_attachments/files/112/260/134/119/197/130/original/c77700330ef57f9f.png",
"sig": "999727bf4f2c42e13229fba5ce0489b657023b3f102d82f708a682a234264e3420eeca71795ff12ab6154a52ee6fcecf043f3ccab25b0530d6d4699ca955966e"
}
