If you receive this error, most likely you are using Yahoo for the email server or an email server managed by Yahoo, such as AOL or AT&T. Yahoo has implemented an option that by default, does not let 3rd party products access the email servers.
Note: If you get an error message of "535 5.7.0 (#AUTH005) Too many bad auth attempts error when trying to send email" then you will need to adjust your security settings in your Yahoo/AOL/ATT account by:
- Log into your account on the Yahoo, AOL or ATT website where you check your mail via their website.
- Select Account Security
- Click Generate app password
- Select Other App
- Enter BLS-2021 for the name
- Click Generate
- Make a note of the generated App password and enter that into the password field of BLS.
Please note that Yahoo/AOL/ATT may change their security requirements from time to time. These instructions have been tested in Sept 2020.