Hi Brian, thanks to your suggestion I checked the google account security settings and Lo! "less secure apps" was off.  I turned it on and all is well. Thanks a lot!

Suddenly when fetching new mail into Pegasus from Gmail I get : "The host claims that either the username or password you have supplied is invalid"  As far as I know I haven't changed anything, and Pegasus worked fine till the day before yesterday.  I've found it brilliantly useful for about 25 years, actually. 

thanks

Bruce 

Any changes on the Gmail side, like enabling 2 factor authentication or disabling the "allow less secure apps" option?

Thanks Brian - No such changes by me, but does Gmail change that stuff itself?  How can I check and if necessary fix the changes? Other odd stuff's happening as well - I can check my Gmail direct from my Windows desktop using Chrome browser; but on my Android tablet while I can check my mail using Chrome browser I also get a "login failed" notification every single time, even though the login didn't fail.