I use Google Apps for Work. Let's say I have:
primarydomain.com
And another alias domain:
aliasdomain.com
As long as I send emails from primary domain both SPF and DKIM result perfectly aligned.
However, when I send emails from alias domain SPF fails to align for a valid reason that it is actually primarydomain.com that is sending emails.
Is there any way to align SPF for alias domain?