The aim that I started with was mail reliability. There wasn't much that was in my hands regarding it. So I switched my attention to mail security and reporting.
I have implemented these specifications for the mails sent to/from ekvastra.in:
- Added to STARTTLS Policy List
With these implemented properly, Email deliverability also gets a boost! I use email signature from Actalis which are issued to me for one year at a time. Current signature is valid from April 12, 2019, to April 12, 2020. SHA1 fingerprint is 05:80:36:E2:4E:91:E7:CE:C7:AD:3A:D7:35:3C:A2:EE:93:00:58:07