Setup SPF record for HELO name
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@@ -527,6 +527,14 @@ resource "hetznerdns_record" "archlinux_org_mx_aaaa" {
Due to an influx of spam, we have had to temporarily disable account registrations. Please write an email to accountsupport@archlinux.org, with your desired username, if you want to get access. Sorry for the inconvenience.
The RFC[1] recommends it and it seems to be best-pratice these days.