I happened to see the three questions below in short succession, and they all struck me as being "non-questions" because the problems described were either due to a typo or a misinterpretation of what was happening.
It seems to me that even though they have an accepted answer, they're candidates for closing and deleting, but I'm not quite sure why I think that. As I said, they seem NARQ-ish, or maybe it's because a typo is clearly a local error (Layer 8 or ID-Ten-T Error/PEBKAC), I'm not quite sure.
What should be done about this type of question?
How to solve authentication error in sendmail relay through gmail