Since WordPress 5.3, a prompt asking to confirm the administration email address appears every six months when a user with an administrator role tries to access the wp-admin dashboard.

This feature was introduced to make sure that the email address configured in Settings → General is active.
When this screen is shown you have several options:
- Confirm that The email is correct, in which case you can now access to manage your WordPress dashboard, and this screen will reappear again in 6 months.
- If the email is not correct or you want to change it, you can click on Update, which takes you to the Settings → General administration screen to change it.
- Ask WordPress to remind you in 3 days, by clicking on Remind me later
- Simply exit by clicking Back to website link.
But there should be better options to solve this annoying confirmation screen:
- Set your own time to be asked again, instead of the usual 6-month period.
- Being able to decide not to ask you again ever.
Disable WordPress Admin Email Verification Notice
Use the following filter to competely disable WordPress admin email verification notice:
add_filter( 'admin_email_check_interval', '__return_false');
Code can be added in your child theme’s functions.php file:
Change Frequency of WordPress Admin Email Verification Check
Filter admin_email_check_interval
can be used to change the frequency that administrators should see the verification screen.
The following example changes the interval from the default of 6 months to 1 year:
add_filter( 'admin_email_check_interval', function( $interval ) {
return 31536000;
} );
Value 31536000 is equivalent to 1 year in seconds. For any other interval, simply substitute this number for the number of seconds in the period you want to specify. Here is a simple tool to convert human-readable time using hours/minutes/seconds to seconds: https://www.tools4noobs.com/online_tools/hh_mm_ss_to_seconds/
If you’re interested in other ways to customize WordPress using a Child theme, I have these and other snippets available in the functions.php category. Thanks for reading!