Dear List Members,

We (the list admins) have been seeing a significant number of members 
being monitored by the Listserv error checking process. There are two 
main causes of this monitoring. One is that the IEEE server is being 
blocked because some mail systems think we are a source of SPAM. We 
cannot do a lot about this problem except to ask various mails systems 
to allow our list emails to pass through. These are handled on a case by 
case basis.

Another reason for the errors we are seeing is mail loops. Loops can be 
caused by a number of different issues, typically a mail that is being 
bounced back and forth between the sender and the receiver. These are 
really difficult to determine where the actual problem started. But when 
a loop is detected, we can detour the mail and break the loop. The 
problem is that some member mail might not make it to the distribution 
point if it is detected to be part of a loop and we send it to the detour.

About a year ago, we were having some problems with this and were not 
able to ever clearly resolve them. So we changed some error checking 
settings and stopped checking for mail loops. That was okay for a while, 
but in the past month, we have been seeing about 45 members monitored 
every day because of mail loops (half the total errors reported). If we 
let this continue, eventually these members would be automatically 
deleted due to the errors.

In the past week or so, we have done some more research and have decided 
to turn loop checking back on in order to break the loops that have been 
started. We will monitor this closely and expect the error rate to 
decrease significantly within a week. And once the loops have been 
cleared, it is expected that the SPAM score of the IEEE servers will 
decrease accordingly and we will see much less blocking of list emails 
as SPAM. That, then, should decrease the other major error number by a 
likewise large amount. This may take another week. The goal is to get 
back to our normal error rate of less than 5 per day.

I give this long winded dissertation so you might know that we are 
trying to keep the list flowing to all members, both on the send and 
receive sides, without having our list blocked as SPAM or having members 
automatically deleted in error. But you should know that with loop 
checking turned back on full, some members with non-compliant email 
systems may well see an error message sent by the Listserv. Or you may 
find your message detoured and not posted to the list. If either of 
these things happen, please contact one of the list admins right away so 
we can try to determine the cause and find a solution.

As always, we appreciate your patience and cooperation as we try to 
adapt to the ever increasing noise on the Internet.

-- 
Best Regards,

Scott Douglas
EMC-PSTC Administrator
email:  [email protected]

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