Chronic email delivery outgoing
For the last two months since upgrading to Catalina 10.15.6 on a MBP ((13-inch, 2016, Four Thunderbolt 3) with internet speed of 120mbs without VPN and 65-70 with VPN, outgoing mail chronically stalls: computer stats: 3.3 GHz Dual-Core Intel Core i7, 16 GB 2133 MHz LPDDR3
I have to restart the computer almost every time I want to send mail, whether with or without VPN.
Any possible solutions? Perhaps it is the configuration of smtp that I have wrong.
Incoming mail is normal.
Thank you
MacBook Pro 13″, macOS 10.15