Expected response code 250 but got code "535", with message "535-5.7.8 Username and Password not accepted

I recently encountered a SwiftMail error while trying to send a mail through gmail.

 Expected response code 250 but got code "535", with message "535-5.7.8 Username and Password not accepted.

I was trying to send mail through my gmail and google thought that I was a spam(maybe because I was requesting too fast) I received a mail from them saying my account was access and I told them it was me. I was able to send mail without problem and it just occured now.

This is the contents of my env file.

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
[email protected]
MAIL_PASSWORD=mypasswordhere
[email protected]
MAIL_NAME=talentscout

Solution

I researched on the internet and some answers includes enabling the "access for lesser app" and "unlocking gmail captcha" which sadly didn't work for me until I found the 2-step verification.

What I did the following was:

enable the 2-step verification to google HERE
Create App Password to be use by your system HERE
I selected Others (custom name) and clicked generate
Went to my env file in laravel and edited this

[email protected]

MAIL_PASSWORD=thepasswordgenerated
Restarted my apache server and boom! It works again.

This was my solution. I created this to atleast make other people not go wasting their time researching for a possible answer.