Google created a two step verification process to increase security. The process requires entering some code, typically a six digit number, in addition to the regular user password. The code is normally sent by Google via SMS text message to the user’s phone.
The downside is if you have any applications that use Gmail’s SMTP to send out email messages, it will be rendered useless due to the extra authentication.
I ended up using another SMTP server. Thanks to AT&T. I’m glad I found another option for sending out email messages within applications. Google does give you the option to turn off the two step verification process, which I ended up doing anyways.
I think the two step process is more of annoyance than anything. Clearing your browser’s cache requires you to re-enter a new code. Each time you’ll receive a new code via SMS text from Google. After doing it for about 10 times all within a week, I grew tired of it.
Now, the two step verification is turned off for good. Thank goodness.