Launchpad is completely compliant with domains that use SPF and DKIM, as the envelope sender is @canonical.com. It's only operators who unwisely use a restrictive DMARC policy for user domains (breaking mailing lists, among other things) that are a problem.
Launchpad is completely compliant with domains that use SPF and DKIM, as the envelope sender is @canonical.com. It's only operators who unwisely use a restrictive DMARC policy for user domains (breaking mailing lists, among other things) that are a problem.