[MlMt] New Yahoo! Mail restrictions for 3rd party e-mail client access as of Oct. 20th 2020

[Greg Earle]

All:

I use MailMate for all of my e-mail accounts, including a throwaway 
Yahoo! Mail account I only use for external verification of other 
accounts and a few mailing list subs from shopping sites.

Today I got an e-mail from Yahoo! with Subject: "Important security 
notice for your Yahoo account".  It says that as of October 20, 2020

"We’ve noticed that you’re using non-Yahoo applications (such as 
third-party email, calendar, or contact applications) that may use a 
less secure sign-in method.  To protect you and your data, Yahoo will no 
longer support the current sign-in functionality in your application 
starting on October 20, 2020.  This means that you will need to take one 
of the steps below to continue using Yahoo Mail without interruption."

It lists 3 different options, including one to "keep your current, 
non-Yahoo app", but you'll have to "follow a few steps to get it in sync 
with our secure sign-in method".

Anyway, for specific instructions for using "Others" e-mail clients, 
there is a link to this page:

https://help.yahoo.com/kb/new-mail-for-desktop/SLN27791.html?impressions=true

where it has these non-helpful suggestions:

--
     If possible, use the Yahoo Mail app or mail.yahoo.com. Since Yahoo 
owns these services, we can ensure you're always using the most secure 
sign-in technology when accessing your email.

     If you'd prefer to continue using your non-Yahoo email application, 
try removing and re-adding your account.  Look for the Yahoo logo when 
you go to set it up again to activate the secure sign-in method.

     If removing and re-adding your account does not work, generate a 
third-party app password to access your account.
--

I'm not sure whether I'll be able to continue using MailMate with these 
new restrictions after October 20.