Avast error message authentication unsuccessful 535

#Avast error message authentication unsuccessful 535 code

Before this happened was using McAfee's Firewall & never had a problem. This function always worked before so not sure what's wrong. I can email books from Gmail itself but not from Calibre. I currently have my gmail account set to allow access to less secure sites. Tried this several times using different test addresses but still 'freezes.' Tried to run the Test but as soon as I do so get a 'Test Not Responding' & only option is to close Calibre or wait. IOError: Failed to send mail: error(10060, 'A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond') Can't send email to any address, including my own. In the Send From line I have entered my gmail address. Am using Avast free antivirus & Windows Firewall. My hard drive had to be replaced & reinstalled Calibre 2.30 on a system running Windows 8.1.

#Avast error message authentication unsuccessful 535 code

In any case, I have added some code to use an in memory buffer for the email test session instead of stderr, which will prevent that error from happening, regardless of how broken stderr on your machine is. So either the redirection fails and the original stderr is broken or for whatever reason ASL is failing on your machine.

So calibre redirects them to the ASL service, see On OS X >= 10.8, Apple in their infinite wisdom decided to make stdout/stderr non-functional for graphical apps - they no longer appear in Console.app. If you believe it is not that, then you need to figure out why stderr is invalid on your computer. The most common explanation is the latter. That means either that for some reason your computer is failing to setup a working stderr stream or something is blocking calibre from writing to stderr.

That error means writing to the stderr stream on your computer failed with a broken pipe.