No. of undeliverable messages
Image: JISCmail logo
800000 
_
600000 
_
400000 
_
200000 
_
0 
_
111573
110311
108847
119936
103759
102430
102723
94965
91913
103150
100452
117522
87654
127869
125862
143193
129397
135351
124322
128766
116818
135905
159062
144942
111579
153101
167429
186118
202570
243514
241399
263536
236150
263764
269095
235829
247650
305083
315666
308385
314109
377538
356716
353918
319693
348128
384855
315871
211248
246489
240469
258595
249413
274777
270909
241851
247771
259552
281780
322773
254135
312374
290077
317912
285925
315337
222106
221494
242139
288163
260205
256282
231254
319552
289449
304259
273681
242577
292157
297610
317125
317544
353884
378999
283337
365750
359150
337526
356452
356244
341812
357562
357647
398716
402129
386175
370118
420889
427631
454903
411017
419145
409708
404330
402768
436914
508987
476169
398017
446058
482053
528814
447227
481723
361572
442998
335774
455715
533127
513438
513781
525668
496319
532776
488306
515524
476218
516129
523081
543262
534012
541328
510294
602611
739851
644062
585321
593066
 

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