
If all of that is set up and it's still not working, your best bet is to provide a screenshot of your settings (with personal information blocked/removed) and any errors you are getting. These settings should work unless you have a Verizon/Yahoo account, in which case the server names are: -and.

If you are given the option anywhere for Secure Password Authentication (SPA), set it to No or Normal Server Requires Authentication: Yes (You can set it to use the same settings as incoming, or manually enter the username and password.) The settings for using Verizon's servers would be: If this is the case, temporarily disable them and check if messages arrive in your Inbox folder.For the sake of example, we are going to pretend that we are setting up fictional account and the password for logging into that account in webmail is "fakepassword" - Again, this is a fictitious account for the sake of an example. Make sure there are no mail filters that delete incoming messages or move them to other folders. This is a filter that deletes or moves email messages Go for the option that is the Security Panel. Note: You can also reach to the Options tab by using 3 labeled horizontal lines. You can delete messages from the client, but leave them in Yandex.Mail by configure the client using POP3, but we don't recommend this as messages might not sync correctly with the server. Now, hit on the Tools option from where you need to choose the Options tab. This is because your client uses the IMAP protocol, and the inbox in your client is synced with the service. If you use an email client and delete email in it, messages are removed from the service page as well. You should also make sure there aren't any unknown phone numbers on the Phone numbers page. If you are sure that only you have access to your mailbox, test your computer with an antivirus software, change the password and alternative address. Choose 'Security' and open the 'Passwords' tab and select the 'Saved Passwords' button, and there you will be able to find and delete your old passwords.

If more than 2000 actions were performed after the messages were deleted, data on the delete operation will not be displayed in the log. If Mozilla Thunderbird keeps asking for password follow the steps outlined below: Go to Edit and select 'Preferences'.
