I have set my POP3 port and server along with my SMTP. I receive mail from my contacts, but when I attempt to reply or send an initial email, it shows a copy in my sent folder, but it seems as if it is not transmitted because no one receives my emails.
Please go to tools - settings - advanced, mark off SMTP under your account, apply and restart eM Client.
Try to send email and send logs to email@example.com together with this topic’s URL as a subject.
after this you can turn logging off.