Campaign Status : Submitted. Help Pls

status:submitted. letters do not sending. idk what to do, but my status :submitted. and letters do not starting to sending. what is happening, what i should do?
i didn’t change anything. i just reboot container on ubuntu, then my campaign just did not starting. idk what i should do in this situation. time is good, campaign should start. so i tried to send 1 e-mail for test , and that was delivered. but that was test e-mail in the settings of campaign

@paul123 You need to process the queue, either through the admin interface or using a cron job. This is explained in the online manual Methods of Sending (Br... | phpList manual