When I was working and the Fed-gov was my customer, it was REALLY important (and beaten into us twice a year) to use ONLY official email, Teams, etc for EVERY communication that involved our customers.
*IF* you used private email or a ‘convenient’ method for sharing files, it was a fire-able offense.
We could only use our work phones and work voice mail. WE never used ANY ‘secure messaging services’ unless we were using an authorized .mil or .gov account.
This sh!t needs to stop. HE needs to go.
Same here...............