I have configure more than 362 PMTA server with high Open rate and good INBOX delivery rate. My recent PMTA Configuration project include:
1)Configure PMTA server with 256 Rotable IPS.
2)Configure PMTA Server with Multiple domain rotation.
3)DKIM/SPF/DMARC/FBL setup
4) Automatic Bounce process
5) Mixed Domain +TLD Domain configuration
6) Interspire Addons
7)Antispam parameters