I recently set up purchased a VPS, installed Ubuntu 12.04 LTS on it and Webmin/Virtualmin. I think I configured DNS records for each domain I've added properly.
When I am sending emails to an Yahoo email I receive the following error:
C658BA3706 565 Wed Jan 29 15:13:47 firstname.lastname@example.org (host mta5.am0.yahoodns.net[126.96.36.199] said: 421 4.7.1 [TS03] All messages from 188.8.131.52 will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html (in reply to MAIL FROM command))
How can I solve this problem? I do not intent to send bulk/spam email.
Is there a way to make all my email accounts created on different domain names under my VPS to send emails to the Inbox folder of other email accounts?
For example when I send to gmail my emails go to inbox, but when I send to hotmail they go to the spam folder.