tsNetSmtpSync (with attachment

[G. Wolfgang Gaich]

Hallo all,

try to send an email with attachment (PDF) from LiveCode with tsNet 
(tsNetSmtpSync)

I tried the sample stack "Mail v1.2" from
https://downloads.techstrategies.com.au/tsnet/LCMail.livecode

I get an error when I try to send with an attachment (PDF document):

Error tsneterr: (28) schannel: timed out sending data (bytes sent: 0)
  returned from server


Without the attachment the email is send.

Windows 7, LC 8.1.9


Any ideas?

Best
Günter