Ed,
Are you suggesting David should use multiple reverse-DNS PTR records on his new IP address, i. e., the previous one and the new one? That's certainly possible (if the colo provider supports it, which many don't), but I question whether it's a good idea, as it could trigger spam detection in receiving SMTP hosts that don't check more than one PTR record.
Best,
Chris
Am 20.09.2013 um 23:48 schrieb Ed HIDDEN@ent.net>:
> I would say in regards #2, ADD another PTR for the new IP, keep your existing one as well.
>
> --Ed
>
> On 09/20/2013 05:06 PM, David Camm wrote:
>> chris also wrote about using g_bind_out.
>>
>> my dns currently has this:
>>
>> mail IN A 1.2.3.4
>>
>> and customer dns's have
>>
>> MX 10 mail.advwebsys.com
>>
>> if i were to add 5.6.7.8 into the network config and then do g_bind_out
>> '5.6.7.8'
>>
>> someone sending TO us would still see 1.2.3.4
>>
>> someone receiving FROM us would see 5.6.7.8 as source ip and therefore
>> i'd need to change the ptr record (maintained by my colo provider to
>> 5.6.7.8). i should not, i think, change 1.2.3.4 to 5.6.7.8 in my dns.
>>
>> so i think your solution (ed) is correct in that i need to:
>>
>> 1. add the additional ip address
>> 2. change the ptr to point to it
>> 3. set g_bind_out to the new ip address
>>
>> since bind_out will force writing on the new ip, i don't think the
>> gateway statement is necessary.
>>
>> thoughts????
>>
>> david camm
>> advanced web systems
>> keller, tx
>>
>>
>>
>>
>>
>> On 9/20/2013 2:08 PM, Ed wrote:
>>> There's a couple different and easy ways to do this :
>>>
>>> Just add the new IP to the server. Add a g_gateway entry for all
>>> email and bind that to the new IP. Then all you need is to add to
>>> your DNS an A and PTR record for the new IP. MX and everything else
>>> stays the same. All you're trying to do is get surge to use a
>>> different IP to send with.
>>>
>>> Optionally you can set g_bind_out to get surge to "send" on the new
>>> IP. You still need the new DNS entries. This is the way we do it
>>> with multi-homed servers behind load balancing. g_bind_out can take a
>>> comma separated list and both ip4 and ip6.
>>>
>>> Food for thought ?
>>>
>>> --Ed
>>>
>>> On 09/20/2013 02:59 PM, David Camm wrote:
>>>> thanks for the suggestions, but neither gatewaying to another server nor
>>>> changing the ip is viable for me.
>>>>
>>>> a) i don't have another server to gateway TO and
>>>>
>>>> b) the server is multi-homed already. just adding another ip will not
>>>> get surge to use it. i'd have to reconfigure networking, change the dns
>>>> that points to the server AND get my colo facility to change their
>>>> reverse dns entry.
>>>>
>>>> david camm
>>>> advanced web systems
>>>> keller, tx
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>>
>
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