That changed the error message I'm getting:
:blat.test
Blat v3.2.24 (build : Feb 9 2022 21:19:39)
64-bit Windows, Full, Unicode
Error: Wait a bit (possible timeout).
Error: Wait a bit (possible timeout).
Error: Wait a bit (possible timeout).
*** Error *** SMTP server error
Error: Not a socket.
Error: Not a socket.
: