exim mail
hello,i need some help here, here is my story..
i have 1 centOS server for webhosting, i have been using it for almost 1 month and having no issue with sendmail. but today i tried to send email with my outlook express (i always use it) and i was shock that there was an error when sending it.
here is the log that outlook gave.
An unknown error has occurred. Subject 'hello', Account: 'sales', Server: 'mail.mydomain.com', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0B

thanks in advance ...