This evening I encountered (error #103) while trying to send a message
with a pdf attachment.
After I switch to the basic HTML version and successfully sent the
message.
The interesting part:
I logged out of Gmail and then back in.
Then I checked 'Sent Mail' which shows that the message (which
generated error 103 while attempting to send or save) was sent 7
times.
Of course this was an important email to a client (^Thanks Murphy), so
I really hope it did not actually send 7 times.
Does anyone else have experience with this happening?