On 04/06/2012 03:28 PM, Rafiqul Islam wrote: > My question is too many unknown user sending mail using my MTA(Postfix) so that > hotmail,google reject mail from my domain(mail.navigation.com > <http://mail.navigation.com> and IP:202.53.168.75) and i don't know how to stop > this unexpected outgoing mail. You may want to use an online tool to check your server.... http://www.mxtoolbox.com/diagnostic.aspx http://www.mailradar.com/openrelay/ are two.... -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org