We are experiencing troubles with an important provider that makes all our emails bounce. We tried a lot of solutions to no avail, now we would like to contact the problematic ESP in question (ig.com.br)
A quick research on mxtoolbox makes it appear like they are using the services of "locaweb.com.br" :
mx:ig.com.br Find Problems mx Pref Hostname IP Address 10 mx1.ig.correio.biz 220.127.116.11 Brazil BR Locaweb Serviços de Internet S/A (AS27715)
However, locaweb denies being involved. As I don't understand very well how mxtools work, I'm not able to contradict them.
So can I confidently say on the base of this report that they indeed are in charge of dispatching the emails for ig.com.br?
My objective is just to contact anyone in the relevant organization, but I seem to have trouble even at step 0: determining what is the relevant organization