Sent Mails not on Mail-Server

[hannes]

My questions goes for E-mail.

I have an group e-mail working. I get mails from imap an i can send mails with smtp. All is working. If i send mails, the mail goes in my "Sent"-Directory at mails. But now my problem: the sent mail is not shown at my e-mail-server. So i can not see my mails, send with esprcrm, at my local e-mail client.

I hope you can help me. Tanks a lot.