Booleans may seem harmless, but using them can be fraught with peril. When you can’t avoid them, follow these five rules. Booleans are deceptively simple. They look harmless—just true or false, right?

C:\scripts>sendemail.exe -t [email protected] -f [email protected] -u test -m test -s xxx.xx:587 -xu xxx -xp ppp -v -v -o tls=yes Jun 09 23:19:14 i5-3470s sendemail.exe[23352]: DEBUG => Connecting to xxx.xx:587 ...

to send mails from a backend web API hosted in Azure App Service to Office 365 users. We are expecting to get all of those mails delivered to the recipient. This works about 90% of the time. Sometimes ...