I am using Pegasus 2.4.10.3 recently installed on a new Windows 10 desktop computer and cannot send large attachments, more than about 500kB. I have been using Pegasus for 20 years or so on a number of different computers and have never had this problem. I am also using it now on another older Windows 8.1 desktop computer that is working fine with large attachments.
I have gone through all the Options and Internet Options in the Tools menu, but cannot find anything that may account for not being able to send large attachments. Can anyone suggest why this is happening, please, or anything I can try to overcome the problem?
Thanks, Chris