Emails stuck in Outbox
We use the Apple mail app version 16.0 and we use Comcast as our ISP. Sometimes, not always, outgoing mail gets stuck in the Outbox. Some of those times, the mail gets sent several minutes later, others not. Our outgoing server is smtp.comcast.net. Right now we have two outgoing messages that won't move, and no idea why they are stuck or what to do.
MacBook Pro 15″, macOS 12.6