I am a newbie to Linux and Zimbra. I am running zcs-6.0.5_GA_2213.RHEL5_64 on RHEL 5 server. I can send email to anyone except for yahoo.com users. I have searched the forum, but I am not getting something.I checked my ptr,DNS,MX Record etc.I am getting error while sending to yahoo address.
" mail postfix/smtp: 1715222823B: host g.mx.mail.yahoo.com[18.104.22.168] refused to talk to me: 421 Message from (*.*.*.*) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html"
Please help me to resolve this issue.
Thanks in advance