This question is more about google's api than arduino. I have been using my arduino to send emails via gmail like hundreds of tutorials describe.
They all require that you turn on "allow less secure apps" for it to work.
It also says "Google will automatically turn this setting OFF if it’s not being used"
Of course they don't say for how long.
I come to find out today that my project that had been working fine to my knowledge no longer sends emails because google disabled the less secure apps option after a random period of time of disuse.
Does anyone know what this interval is?
Would sending a dummy email once per day to myself reset this interval?
Has anyone found a way to send smtp through gmail with arduino without having to turn on allow less secure apps?
Thank you