[Skunkworks] Outgoing Outlook Emails

Good day guys, I am having a problem here if anyone could give a pointer I will appreciate: There is a mail server running mdaemon and the mails are relayed through AK. Some users (two of them) are able to recieve mails on outlook and also send to local domain. *However, they are not able to send to outside domains.* All other users are fine I have deleted and recreated one of the users account, tried to send to outside domain and sends only one or two emails and goes back to the same problem. Please note that there is no error returned and the sent mail goes to sent folder. Sending using webmail is fine though. Asante -- Warm Regards, G. Karani