In the past , I used cpanel to create email account , now I gave up to use Cpanel
so that now I need it to set up email by myself. As we know we can create email account when add user account on linux and email address before @ sign that is as same user account name, and that can be shown at /var/spool/mail, and that I can see all email account I created.
Now I just create new account by root access and adduser and then see the email account in /etc/spool/mail directory Why I ran the command: sendmail -bv email@example.com that showed me " failed to verfiy: No such user"? Do I need to other steps to let my new email account up ?
I have old email account that I can verfiy its existence by sendemail, but I can not
receive any new email from the old email account when other remote email yahoo account send email to the old email account. And yahoo email box doesn't have
get any mail sending failure return email when send email to the old account.
How I can check what is wrong with the old email account ?
Question-3, Now I use free SquirrelMail, whether I also need free package from
MailMan. What is different between them mainly? Or you have better suggestion
for free web email tool for email box , creating email account, monitor all email account
on Linux ?