The trend we saw beginning Monday morning continues.  Tuesday is winding down with an unusual 31% increase in SMTP transaction times.  We have seen no unusual reports from our email user base, but continue to look into the root cause and will post more information when we get it.

The purple line shows the profile of a typical Tuesday, hour by hour.  This is defined as the hourly average of the last four Tuesdays.  The columns represent 1-hour averages from today.