[BlueOnyx:06850] Re: Relaying Denied error

[Samuel Lentz]

On 03/31/2011 11:09 AM, Larry Smith wrote:
> On Thu March 31 2011 09:09, Samuel Lentz wrote:
>> I just migrated one of my boxes from BlueQuartz to BlueOnyx.  This
>> morning I am having users saying that they are receiving a relaying
>> denied error. This is what is in the maillog:
>>
>> Mar 31 09:42:24 mailserver sendmail[17375]: p2VDgO5d017375:
>> ruleset=check_rcpt, arg1=<to at address.com>, relay=[10.4.2.5], reject=550
>> 5.7.1<to at address.com>... Relaying denied. IP name lookup failed [10.4.2.5]
>>
>> If I am looking at the correctly, I am getting a denied due to a failed
>> IP lookup (they are sending from an internal IP.)  Do I need to add
>> 10.4.2.5 to my hosts file?
>>
> Several ways to solve that, 1. use smtp-auth (port 587) for all sending
> (inside or out); 2. use poprelayd so that once an IP receives mail then
> it is allowed to send; 3.  add your internal network(s) IP block to the
> access file (allowed to send).  Preferred solution (IMHO) is (1) because
> it solves all sorts of problems and just plain works...
>

I am having to use option 3.  I want to switch them to smtp-auth but 
they are not willing to do it at this time.