I have successfully installed Zimbra on a powerful machine a few hours ago, and it runs without a hitch, except for the fact that I cannot send mail outside of the internal network. I am running RedHat ES 4 with the latest version of Zimbra Open Source.
Whether sending or receiving email, no mail gets through. The domain as configured by the software is zimbra.transguard.ae. I have forward and reverse entries A/MX records configured in DNS.
When sending to Hotmail I get:
<...@hotmail.com>: host mx4.hotmail.com[126.96.36.199] said: 550 Your
e-mail was rejected for policy reasons on this gateway. Reasons for
rejection may be related to content such as obscene language, graphics, or
spam-like characteristics (or) other reputation problems. For sender
troubleshooting information, please go to MSN Postmaster.
Please note: if you are an end-user please contact your E-mail/Internet
Service Provider for assistance. (in reply to MAIL FROM command)
<...@gmail.com>: host gmail-smtp-in.l.google.com[188.8.131.52] said:
550-5.7.1 [184.108.40.206] The IP you're using to send email is not authorized
550-5.7.1 to send email directly to our servers. Please use 550 5.7.1 the
SMTP relay at your service provider instead. b35si1613887ugd (in reply to
end of DATA command)
To a domain I own:
<...@urbanshield.za.net>: host urbanshield.za.net[220.127.116.11] said:
550-JunkMail rejected - dxb-b125695.alshamil.net.ae (zimbra.transguard.ae)
550-[18.104.22.168]:34573 is in an RBL, see 550
Spamhaus - IP Lookup (in reply to RCPT TO
When sending mail to the Zimbra server from my mail account I get:
The following recipient(s) could not be reached:
...@zimbra.transguard.ae on 8/8/2007 15:40
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
I have tried accessing spamhaus.org re the RBL message that was returned, but the site has been inaccessible.
Any ideas on this issue? If this works we are expecting to do a company-wide rollout, else it's Exchange...
Lloyd De Jongh