“MenuBarGmail.app” cannot be opened because the developer cannot be verified."

[ibehnam]

I really hate that Apple forces app signing. Is there any way to get the app working on Monterey?

[rcmdnk]

I think there are other problems to run this app on Monterey.
I tried on my Mac (Monterey), it was launched if I allow the app at Security and Privacy in Settings.
But no icon appears in Menubar.

Sorry, I've not updated this app and not used for years.
If I remember correctly, it could not run even at previous OS versions.

It must be updated at least python version (it used obsolete python 2.x...).

[ibehnam]

Oh, thanks for letting me know. It's too bad because an app like this is good for productivity. There are alternatives, but they're closed-source and can't really trust them.

[rcmdnk]

Updated v0.2.3.

To update by homebrew:

$ brew update
$ brew reinstall --cask menubargmail

or

 $ brew install rcmdnk/rcmdnkcask/menubargmail

if you have not installed it.

You can launch it from /Applicatins folder.
For the first time, you may see the warning of the security.

You can ignore it from Settings->Security and Privacy.

Could you please try and let me know if you have any trouble, yet.