On Tue, 8 Oct 2019, Jaroslaw Rafa wrote:
(However, it didn't help with my original Gmail issue - even mail relayed via another server still goes to spam on the receiving side :()
Jaroslaw, While not directly related to your issue, I've found that some clients who use gmail end up with messages I send in their spam folder. Many folks use gmail and only a few have had this problem. I'm certain that it's an issue with their ISP and not postfix or google (directly). They'll call and ask why they've not received the information they requested and I ask them to look in their spam folder. Sure enough, there sits the original message (and attachments) I sent. That they don't think of looking there on a daily basis, or when not receiving expected communications, is a non-technical issue. Glad you fixed your problem. Rich