Solved

Reasonable test to determine if our new spam filter is slow

Posted on 2014-09-03
3
300 Views
Last Modified: 2014-11-12
The office transitioned from Postini to ProofPoint last month, and it sure feels like delivery times have slowed. We use Google Apps (Gmail) as our mail server. Here's what I've noticed thus far:

When I was conducting send/receive QA/QC after changing our MX records to the ProofPoint SMTP server, I noticed that while some emails where reasonably quick to appear in the recipient inbox (< 60 seconds), others were slow (> 5 minutes).
The slowness appears to be on the ProofPoint side as opposed to the Google Apps side. When a test email was slow to appear in the recipient's inbox, it was also slow to appear in the ProofPoint email log. Then, when it appeared in the inbox, it would appear in the log almost simultaneously.
I recognize that this evidence is far from definitive. A ProofPoint rep could reasonably argue that the slowness is attributable to the sending SMTP server.
I'd like to explore the issue further to determine if ProofPoint, is in fact, my speed bottleneck or if the issue is something "upstream" of ProofPoint. If ProofPoint is the issue, it would be nice to have some hard numbers to present to them.
0
Comment
Question by:jdana
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 37

Accepted Solution

by:
Neil Russell earned 400 total points
ID: 40302106
Then examine the message headers and look at the times that each SMTP server handled the message. This will tell you exactly where the message was and for how long before it moved on.

http://mxtoolbox.com/EmailHeaders.aspx
0
 
LVL 62

Assisted Solution

by:gheist
gheist earned 100 total points
ID: 40303034
It also takes some time for reverse DNS cache to warm up
0
 

Author Closing Comment

by:jdana
ID: 40374821
Neilsr,

The MXToolbox header check tool is just flat-out cool. Thanks for the link.

J
0

Featured Post

Percona Monitoring and Management and Grafana

Proactive monitoring is vital to a highly-available environment. We have a quick start guide on Experts Exchange for Grafana users.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The new Gmail Phishing Scam going around is surprising even the savviest of users with its sophisticated techniques.
This article outlines some of the reasons why an email message gets flagged as spam on a recipient's end.
This Micro Tutorial demonstrates in Google Analytics how to create a custom report that shows you traffic over time using the month of year dimensions. There are also instructions on how to fix Google's odd month of year formatting, which Microsoft …
This Micro Tutorial demonstrates how to create custom reports and the secrets of determine the metrics and dimensions for your data that works best with your needs.
Suggested Courses

631 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question