/// <summary>
/// Builds an unsigned DKIM-Signature header. Note that the returned
/// header will NOT have a CRLF at the end.
/// </summary>
/// <param name="bodyHash">The hash of the body.</param>
/// <returns>The unsigned DKIM-Signature header.</returns>
private string GetUnsignedDkimHeader(DomainElement domain, string bodyHash)
{
return(string.Format(
CultureInfo.InvariantCulture,
"DKIM-Signature: v=1; a={0}; s={1}; d={2}; c={3}/{4}; q=dns/txt; h={5}; bh={6}; b=;",
this.hashAlgorithmDkimCode,
domain.getSelector(),
domain.getDomain(),
this.headerCanonicalization.ToString().ToLower(),
this.bodyCanonicalization.ToString().ToLower(),
string.Join(" : ", this.eligibleHeaders.OrderBy(x => x, StringComparer.Ordinal).ToArray()),
bodyHash));
}
