My e-mail client is always showing an error sending messages, It goes to the "sending" folder, but always displays a notification with an "error sending message". It never sends any e-mail from all of my accounts connected in the app. How can I solve this problem? I use the e-mail client every hour for sending e-mails, but this is really putting my work in pause.
I receive e-mails no problem, but sending is a real problem.