Need help on SPF Records.

Hi SPF Support Forum,

I need some advice on SPF config on our DNS record. Our current SPF record 
on DNS

I am getting error message when sending email from @exxonmobil.com to 
mailing domain @franki.be and received rejection error message pointing to 
SPF record error

http://www.openspf.org/Why?id=david.lw.wong%40exxonmobil.com&ip=212.166.45.84&receiver=axsguard.franki-construct.be

From URL above, it mentioned that one of the mailing sending address 
212-166-45-84.win.be is not in the SPF record list.

So, it have recommend that we should insert the address into the SPF list.

But the problem is, we only have 4 outbound servers, which all already 
list in the SPF record

dalmxp61.exxonmobil.com
dalmxp62.exxonmobil.com
hoemxp61.exxonmobil.com
hoemxp62.exxonmobil.com

We not sure where is the 212-166-45-84.win.be comes from. Checking on our 
relay log, it seems that mail.franki.be mailing server have ip address - 
212.166.45.84 which similar to what it suggesting for us to put. But it 
just doesn't make any sense because the SPF list is for declaring our 
official sending mailing server which it should have sufficient for our 
SPF record for other to authenticate.

Please help.

Regards,

David Wong Liang Wei

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