Hey guys I found something while testing, you can try yourself. in the latest build I noticed that my emails are DKIM pass SPF pass and DMARC pass, but ARC is not included in results.
Perhaps in a older build I got this working like a charm and being recognized by google.
Here is an example:
Current cow version:
ARC-Authentication-Results: i=1; mx.google.com;
dkim=pass header.*****
MISSING ARC
spf=pass (google.com: *****
dmarc=pass (p=REJECT sp=REJECT****
Older cow version:
ARC-Authentication-Results: i=2; mx.google.com;
dkim=pass header.****
arc=pass (i=1); ***** <========= there it is.
spf=pass (google.com: *****
dmarc=pass (p=REJECT sp=REJECT *****
hopefully we can find a fix or solution to this soon, have a good one.