my emails aren’t sending and are sitting in outbox.

Hi, welcome to the Apple Users Community.

Are you using a POP/SMTP email or iCloud (iMap)?

iCloud email settings help can be found here:

https://support.apple.com/en-us/HT202304

POP/SMTP provided perhaps by your ISP or other webmail service outside Apple you would need to contact them.

They should basically look like this with your details included.

Sorry for the delayed reply. This is most likely an email account issue then, you will have to contact your provider by phone or on their website to get them to look into it. They can also help you reset passwords and correct any setting issues that may be occurring.

Best of luck