Email delivery time metrics

Percentage of emails delivered in five minutes (300 seconds) or less:

Month	%
Apr '16	96.90%
May '16	96.55%
Jun '16	95.90%
Jul '16	95.96%
Aug '16	95.19%
Sep '16	96.19%
Oct '16	96.75%
Nov '16	96.96%
Dec '16	97.08%
Jan '17	97.00%
Feb '17	95.69%
Mar '17	96.53%
Apr '17	96.43%
May '17	96.50%
Jun '17	94.90%
Jul '17	94.54%
Aug '17	98.01%
Sep '17	100.00%
Oct '17	100.00%
Nov '17	99.90%
Dec '17	100.00%
Jan '18	100.00%
Feb '18	99.95%
Mar '18	100.00%