Hi everybody, I have got a little problem with a mail address on my server. I have got only one address on my server. My goal is to create several mail addresses but I am testing one before creating others. My problem is I cannot connect to my mail address with Thunderbird. I can connect to the mail box with Roundcube. I can send an email from this address (from Roundcube) but, I can not receive any mail. I’ve tested from two different addresses. After several hours there is no mail received inside Roundcube, and, more strange, I did not receive any “error mail” in the mails boxes used to send to my test address hosted on my server. I have read several threads about this kind of problems but I am really not sure what to do. Since I am a newbie, I don’t really know if my problem come from sendmail, postfix, or my DNS. Note: I have installed sendmail several weeks ago to enable the PHP function "mail()". Can you help me to enable email sending and receiving from mail addresses hosted on ISPConfig? I will post several informations in second part.