Ad overload. I don't mind ads, but your interface takes it to new extremes, especially when I try check a folder with no messages in it.

Give us a way to 'opt out' of the pop-up that keeps telling us that "you may have overpaid". I have no interest in the service. I pay for Yahoo mail. I'm sick of dismissing that pop-up!

Stop interferring with my 'experience' by asking for feedback whilst I'm looking at my emails!

Until third-party ads stop being a significant source of malware, using an ad blocker is a smart, even necessary, protective measure. When you can assure me that it's not possible for a malicious ad to make its way into my browser via Yahoo or any ad network is uses, I'll be happy to add Yahoo to my whitelist.

The new Yahoo Mail is horrible! Slower than the 7 year itch! No Block button! Why was it changed? It certainly is not an improvement! Horrible! Horrible! Horrible!

Every single time I log in to my email since April 11, 2018, I have to accept or dismiss the new Yahoo Oath privacy terms. Please make that stop. I've accepted multiple times.

Switch back to the previous version of Yahoo Mail PLEASEEEE!!!!!!!

Restore the Classic mail button. It is missing. People want the Classic format. This is a major thing...not a minor issue. Thanks!

Yahoo, Bucking Industry, Scans Emails for Data to Sell Advertisers
Web giant analyzes more than 200 million inboxes for clues about what products people might buy—a practice much of Silicon Valley has declared off-limits

Hard to use. Delete is off center and purple may not be for men/women. I can't write an e mail without it malfunctioning..putting things in strange locations...takes up too much space. Buttons are in strange locations. Side list is too faint. Classic mail was perfect. The new mail is far from perfect. We are not bored with Classic mail. Restore Classic mail to all. Thanks!

I don't want this upgrade. It's terrible and has too many extras that I don't want. All I want is the simple email that I had.

You used to be able to "filter" emails straight from the body of the email. Now there's not an option for that. Instead you have to open the settings, create a filter, going back and forth to the actual message to create the filter. Bring back the option of "filter emails like this" in the body of the email.

Bring back the option to import contacts from Facebook. It's a very important feature to get the contact details of Facebook Friends., It was Yahoo's unique capability that no one has.

Before the latest update, we could check any number of unread mails and hit "k" as a hot key to mark them as "read". Now we have to go through the drop-down to do it. Bring back the hot key!

stop asking me for feedback its ******* obnoxious

After being TRICKED into upgrading to the new mail without a way to revert.

I have noticed: 

1. No more bulk e-mail blocking. I can get like 30+ nasty an inappropriate junk sometimes.

2. Domain blocking has been disabled, I need that as said domains that are spamming do NOT care that spammers are mass spamming others. 

3. My filters both the organization wise ones and blocks mysteriously got wiped. I can't fix the block list without the @domain block access.

Stop messing with the e-mail system. It is was fine and worked great. Now it's nothing but delays, changes for no apparent reason. If something isn't broken, don't try to fix. Keep it simple and easy to use.

You need better spam filters. If I receive a legitimate email with bitcoin in the subject field, this is always followed by hundreds of spam emails related to bitcoin. Same for dating, any legit online dating emails are immediately followed by hundreds of dating spam.

I also have Gmail, and that never happens in their system.

Give us a way to block spammers using there IP address since they just keep changing their email address.