After switching from postfix to sendmail,I have successfully installed and so-called "configured" it.
Initially,I can send it.However,when I check my root account(because I want to send to myself),there are nothing,no mail.
I tried to type mailq,and I discovered that all of the mail are in queue,It couldn't be sent out!!!!
Do you guys have any suggestions about this problem?Any suggestions would be much appreciated!