[vps-mail] Relaying denied

["Mark A. Sharkey" <mark@xxxxxxxxxxxxxxxxx>]

After migrating an account to the vps2 platform, the client is now 
getting "Relaying denied" messages.  This is NOT due to a 
misconfiguration of the vps2 server; but, rather from a failed reverse 
lookup that the vps2 server does (according to verio support).  Is there 
a way to allow our client to be able to send email?  Changing to port 
5190 does not help, and they are on a dynamic IP, so, we can't just 
simply allow that IP as valid either.  Does anyone have any suggestions. 
 Here is the error, and tech support's explanation of the problem.

**********************

Hello Mark,

Thank you for contacting technical support; the problem appears to be 
with the reverse lookup on the ip address they are connecting from. The 
ip address 64.252.248.224, which is assigned by their ISP, resolves to 
224.248.252.64.snet.net; but 224.248.252.64.snet.net does not resolve 
back to 64.252.248.224. This appears to be causing the IP name possibly 
forged [64.252.248.224] error. Their ISP will need to be contacted to 
resolve this issue. If you have any questions please let me know.

Regards,
Brad
NTT/Verio

==== Excerpt from your message received 3/9/2004  9:09:28 MST ====

>>Your message did not reach some or all of the intended recipients.
>>
>>       Subject:  strategic planning meeting
>>
>>       Sent:     3/9/2004 10:45 AM
>>
>>The following recipient(s) could not be reached:
>>
>>       [email address edited out] on 3/9/2004 10:45 AM
>>
>>             550 5.7.1 [email address edited out]... Relaying denied.
>>IP name possibly forged [64.252.248.224]
>>
>>       [email address edited out] on 3/9/2004 10:45 AM
>>
>>             550 5.7.1 [email address edited out]... Relaying denied.
>>IP name possibly forged [64.252.248.224]
>>
>>       [email address edited out] on 3/9/2004 10:45 AM
>>
>>             550 5.7.1 [email address edited out]... Relaying denied.
>>IP name possibly forged [64.252.248.224]
>>

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