Mac Mail freezes after using "save as" command
My Mail Mail often freezes after saving an email to my late-2015 iMac hard drive using the "save as" command. This has happened many, many times, and the only way out is to "force quit" and reopen Mac Mail.
I am using OS X 10.13.3 and the problem has occurred throughout the last several versions of OS X software. It's not a fatal problem, but it's irritating.
A solution?
Thanks so much.
iMac (Retina 4K, 21.5-inch, Late 2015)