Hi,
Having upgrade two machines to Maverick 10.9.1 (no problem with 10.9)
The connection to smtp.gmail.com (any port and ssl=1 or 0) stopped working after years of good service.
"Could not connect to smtp host smtp.gmail.com port 465" (ssl=1)
Mac Pro 2008
MacBook Pro retina
Mac os 10.9.1...