I'm having a problem with my customers who use Outlook/Exchange online for email.
When I send them an invoice, it goes into spam, or doesn't get delivered at all due to it being classified as phishing.
I've verified my SPF, DKIM, and DMARC is set up correctly, no IPBL or DNSBLs, PTR record is set. I'm using an Exchange 2019 Server. Gmail has no problems receiving my invoices.
I think it might have something to do with Outlook not liking the return path or mail from address in my email
When I send out of odoo my return path/mail from is bounce+###-account.move-##@domain.com
Can this be forced to my regular email?
Replying to my own post because I can't reply to people. I wasn't able to find a solution. I ended up signing up for Amazon SES and used their Free Tier to send invoices that way. Have not had a problem since.