I. i just found out that all domains in my new server can send email to anywhere, except to yahoo.com, if sending email to yahoo.com its always rejected like below message using outlook express II. what should we do, i already search this problem in google http://www.google.com/#hl=en&q=cannot+send+yahoo+mail , and i guess its could be because the rdns quoted from resource http://help.yahoo.com/l/us/yahoo/mail/postmaster/basics/postmaster-15.html : The rDNS already setup 1.1.1.0 ns1.domain.com 1.1.1.1 ns2.domain.com 1.1.1.3 domain.com Here is the name server, i only use 1 dedicated ip, it is 1.1.1.3 for domain.com, the other domains are shared : 1.1.1.0 (main shared IP) (shared IP for root) (nameserver ns1.domain.com) 1.1.1.1 (nameserver ns2.domain.com) 1.1.1.2 1.1.1.3 (dedicated to domain.com) 1.1.1.4 The hostname are server1.domain.com, there is no dns zone for server1.domain.com before, i already tried add that dns zone too before but still cant send email to yahoo.com, do you think maybe this is the problem, need to rdns server1.domain.com too? III. below are working example sending email to gmail.com from domain.com, and from other domain domain2.com still not working sending email to yahoo.com, it is no problem when still using previous server, previous server are not using rdns at all - example 1, from , using outlook express, the mailed-by information are from domain.com (ip 1.1.1.3 (dedicated to domain.com)) from domain.com <support@domain.com> to date Wed, Nov 17, 2010 at 4:43 AM subject test1 mailed-by domain.com test1 - example 2, from , using web script, the mailed-by information are from server1.domain.com (no dns zone for this, i already tried add dns zone for this and set ip 1.1.1.0 but still cannot send email to yahoo.com) from username <username@domain.com> to date Wed, Nov 17, 2010 at 4:30 AM subject test2 mailed-by server1.domain.com test2 - example 3, from , using outlook express, there is no mailed-by information from username <username@domain2.com> to date Tue, Nov 16, 2010 at 8:56 PM subject test3 test3
Update guys, i am still fight to solve this bad luck because moving to new server i just moving to this new server and the ip address few days ago, when still using previous server i dont get this problem, so the problem maybe is in this server/the ips, my hosting company cant help but they can do if i say need remove/change some reverse dns already try some effort below but still didnt solved it - I already try creating ticket.cpanel.net support, They say this : - And some friends tell me this : - This is the error message that i get (bounce back to my outlook express or from mail log) : 421 4.7.1 [TS03] All messages from x.x.x.x permanently deferred I already contact yahoo Postmaster team from this form, tell i already reviewed they best practice and other explanation/details in the form 48 hours a go, then i already get reply back (but maybe just auto reply), and i replied the message again asking is it my ip address already whitelist or not since i am still cant send email to yahoo.com Please help guys share your knowledge and experience, are you agree with 2 person above (cpanel staf and a friend) Here is again the rDNS already setup by my hosting company 1.1.1.0 ns1.domain.com 1.1.1.1 ns2.domain.com 1.1.1.3 domain.com Here is the name server, i only use 1 dedicated ip, it is 1.1.1.3 for domain.com, the other domains are shared : 1.1.1.0 (main shared IP) (shared IP for root) (nameserver ns1.domain.com) 1.1.1.1 (nameserver ns2.domain.com) 1.1.1.2 1.1.1.3 (dedicated to domain.com) 1.1.1.4 The hostname in whm are server1.domain.com, need to rdns server1.domain.com too? if yes from what ips above? change 1.1.1.0 from rdns ns1.domain.com to hostname server1.domain.com? or change hostname in whm from server1.domain.com to ns1.domain.com? i see in http://whatismyipaddress.com/ip/1.1.1.0 the hostname are ns1.domain.com, not server1.domain.com, is it still ok or need to change above?
Try setting up SPF records for the domain in the DNS. Both Yahoo! Mail and Hotmail like that, so that's good for increasing deliverability.