[mrtg] script w/ values always reads zero on graph

[Jim W. Weller]

mrtg-2.9.17 

I have a mail log that I parse with an external script to do counts of
sent and recipients (which are bcc's). This tiny configuration is part
of a much larger one. I've broken it into its own config file because
I'm boggled by the results.

I think I'm clear on the difference between "normal", gauge, and
absolute. This one is normal because the counter continues to grow and I
want mrtg to calc the diff between this and last. 

Why are my graphs for this (http://bb.uaa.alaska.edu/mrtg2/emails.html)
always zero? Even when I send a bunch of mails to make sure the values
for last and this are different and verify the numeric difference.
Thoughts?

mrtg.conf
--------------------------------------------
WorkDir: /usr/local/blackboard/docs/mrtg2
WriteExpires: Yes
XSize[_]: 260
YSize[_]: 80

# bb6 emails sent/recieved
Target[emails]: `/root/uaa_scripts/mrtg_email_counter.sh`
MaxBytes[emails]: 1000000
Title[emails]: Email statistics
PageTop[emails]: <H1>Emails sent</h1> This shows total emails sent and
total recipients of those mails.
ShortLegend[emails]: &nbsp;
YLegend[emails]: emails
Legend1[emails]: &nbsp;
Legend2[emails]: &nbsp;
Legend3[emails]:
Legend4[emails]:
LegendO[emails]: Sent emails &nbsp;
LegendI[emails]: Email recipients &nbsp;
Options[emails]: integer,growright, nopercent, noinfo
--------------------------------------------

and output from /root/uaa_scripts/mrtg_email_counter.sh looking like
this
--------------------------------------------
981
209
0
0
--------------------------------------------

Jim Weller
Software Engineer
Information Technology Services
University of Alaska Anchorage
3211 Providence Dr., Anchorage, AK 99508
o: (907) 786-4656
e: jim.weller at alaska.edu
w: http://technology.uaa.alaska.edu 

The most important thing is not so 
much where you are, but in what 
direction you are going. 
- Oliver Wendell Holmes -

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