=== Introduction ===

Several of IPP people have been having problems with delays in email.  I'm running an experiment as follows:


 * cron job every hour at :00 from exim4 and my desktop (so the email is user@(computer).ifa.hawaii.edu)
   * sends an email (with date and time) to @gmail
   * sends an email (with date and time) to @ifa
 * record the time my gmail account receives the email
 * record the time my ifa account receives the email
 
=== Plots ===

Here are daily plots of email delays (for ifa account) - note there have been no delays seen with the gmail account, also, the scale is set to 0 - 150 minutes. There are delays longer than 150 minutes, those show up on these plots as only 150.

[[Image(emaildelay.20140607.png)]]

[[Image(emaildelay.20140608.png)]]

[[Image(emaildelay.20140609.png)]]

[[Image(emaildelay.20140610.png)]]

[[Image(emaildelay.20140611.png)]]

[[Image(emaildelay.20140612.png)]]

[[Image(emaildelay.20140613.png)]]

[[Image(emaildelay.20140614.png)]]

[[Image(emaildelay.20140615.png)]]

[[Image(emaildelay.20140616.png)]]


This is a plot of how many times emails were delayed for each hour (out of 10 days).  Worst times to send/receive emails are at 6am and 8am.

[[Image(emaildelay.by.hour.through.20140616.png)]]