On 11 Feb 2021, at 23:49, Nick Tait wrote:
To me that sounds like a reason not to use Sendmail, rather than a reason not to apply DMARC policy? ;-)
Any mail system of significant size will receive some legitimate messages that have passed through a Sendmail machine under other management, and some of those will have their DKIM signatures broken.
-- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire