I can no longer access my gmail email account on Safari before and after it was updated.
I tried on Chrome and was able to get in. However, I don't regularly use Chrome and would like to continue accessing my email using Safari.
I cleared cache, cookies, upgraded iOS, restarted computer and removed extensions. Help please
iMac (2017 – 2020)
I was able to fix this problem by going to Safari > Settings > Websites > Content Blockers and change “When visiting other websites” to “Off.” Also, clear all cookies/website data just to be safe.
At least in my issue, it seems that Safari was blocking Google’s authentication requests which led to the 400 error. When I changed that setting, it worked for me. Google uses multiple domains to authenticate (including google.com and youtube.com, and there may be others; I’m not sure). So it’s easier to just turn Safari’s content blocker off than try and find every possible domain Google uses to allow them all manually.
After successfully logging in, you can re-enable your content blocker again.
Thank you rostosha! changing the default browser to Chrome worked.
Tried this first, it doesn’t work in all cases, for whatever reason or set of variables. Using Chrome, briefly, is a viable second option.
If I try to submit a Question to the Public Forum for Google & Gmail I get this below; Can Anyone Please Tell Me Why I Am Not Even Allowed to Post a Question Anywhere Online About This?
400. That’s an error.
The server cannot process the request because it is malformed. It should not be retried. That’s all we know.
This appears to be working, or at the very least my iMailbox is now downloading all my Gmail and sub folders. Hasn't finished yet but upon completion I will attempt to switch back to Safari as my default browser and see if it holds up. Thank you!!!
In the end I really do think that this is a cache and issue so changing you default browser would work if it’s never been associated with your Gmail account. Changing browsers didn’t work for me and it seems like there are a few work arounds out there so that’s great!
I am trying to correct error 400 that prevents me from using my Google mail on my iMac. When I go to Safari Desktop & Dock and try to change the default browser I only see Safari. How can I add Chrome or another browser?
I changed the password on my gmail account for security reasons. When I tried to set the password on my Mac mail, I got this same 400 error message. I then set my default bowser to Chrome as suggested and repeated the same process to set the password on Mac mail. The process opens up Safari, even though I set the default browser to Chrome. So it didn't work, and I get the same 400 error message
I am having the same problem and the suggestion to change content blocker settings did not help.
Same. Changing content blocker settings did not help. Can access gmail the Mail in my iPhone and iPad but not my MacBook.
Thanks for your help. sadly, no change.
My goodness, what trickery! This worked perfectly. Thanks.
Thank you! This was driving me nuts. After I changed all my email passwords, one of my accounts gave me this error (just one). Changing to Chrome for default browser was the only thing that worked.
Don't forget to change it back to Firefox or Safari when you get things working.
Thanks but that did not help at all.
Changing the default browser to Chrome did the trick for me as well. Thanks!
400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know.
