I wrote an email and then couldn't. Find it in ' sent' mail. Instead there appeared an 'outbox' with the email in there but no way to 'send'it. I never saw this 'outbox' before.|||An outbox contains mail that you have sent but the email server has not picked up yet. It is extremely rare online. It can occur with a standalone email program if you have it set to only send when you close the program.
It is possible there was some type of server problem. See if it disappears later and appears in the sent folder.
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