Method TryCreateFromMailbox

Namespace

MailFathom.Domain.Emails.Authentication

Assembly

MailFathom.Domain.dll

TryCreateFromMailbox(string?, out SenderDomain)

Builds a domain from a mailbox, which is what an SPF check and a From header both carry.

public static bool TryCreateFromMailbox(string? mailbox, out SenderDomain domain)

Parameters

mailbox string

The mailbox text, either an addr-spec or a bare domain.

domain SenderDomain

The normalized domain, when one can be read from the text.

Returns

bool

true when a domain was read; otherwise false.

Remarks

RFC 8601 writes the SPF identity as smtp.mailfrom, whose value is a mailbox for an ordinary message and a bare domain for one whose envelope sender is empty. Both forms are accepted here, and the domain is what follows the last at-sign because a quoted local part is allowed to contain one.