Hi @Franzi_Sitejet_Team ,
I understand the 5k limits for email marketing; our requirements are not for email marketing.
I shared the news to state that this is going to be a common security requirement.
Experience tells us that when Google creates these shifts, everyone follows (like SSL & SPF becoming a common requirement).
More importantly, DKIM stops spammers from impersonating our clients, and, I think, lands emails in the inbox (not spam).
That is the core reason I and possibly others have been asking for this for 3 years now.
As I understand, Sitejet only provides SPF for now.
Link here if it helps.
This is one of the two core reasons I’m yet to move all my business to Sitejet.
The other core reason is because of the lack of progress on www here.
It almost appears as if Sitejet don’t want client websites to succeed - because their chances of email & SEO success are hampered by the lack of development on these fronts.