Organisational domain
A domain’s top-level registered name, e.g. example.com, as opposed to any subdomain built on top of it, like mail.example.com. DMARC alignment often only requires matching down to this level – see DMARC | Alignment in Depth.
A domain’s top-level registered name, e.g. example.com, as opposed to any subdomain built on top of it, like mail.example.com. DMARC alignment often only requires matching down to this level – see DMARC | Alignment in Depth.