Shoesession

I have 5 messages in my outbox that won't send for days now, what's that all about? I got people to respond to! Also, most of my replies to posts show me an error when I hit submit. I doubt it has anything to do with it, but it's all on my phone. I doubt it's the iOS or clearing cookies or something, but maybe someone has a workaround other than the back button and a resend which always works. Do my outbox messages have to be screened for some reason or what?

outbox is where the PMs sit until they are read by the receiver. they then move to your sent box.

I’ve wondered about that too.
Thanks, Salvagedrover for asking the question.
To be honest, for how this webpage design treats Outgoing messages, that ‘Outbox’ name is a bit misleading.
But, thanks, bbwandheels for explaining how this works.