Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Cisco Ironport - Long delivery time for messages manually released

Posted on 2016-10-11
4
Medium Priority
?
39 Views
Last Modified: 2016-11-05
Model - Cisco Ironport C370
OS - 9.7.2-047

Dear Experts

Please can someone assist me.

On my Cisco Ironport I quarantine all emails containing zip files due to company policy.

Recently when I manually release an email it takes forever to come through. Almost 90 mins. This never used to happen before.

Any ideas?
0
Comment
Question by:TTAF4
[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
  • 2
4 Comments
 

Expert Comment

by:John Sam George
ID: 41838030
Check the Receive connector if you are using Exchange first. Then check the IIS in your CAS servers.
1
 
LVL 19

Expert Comment

by:Mal Osborne
ID: 41839431
Could be greylisting in use somewhere. This is an antispam technique.

Basically, when email is sent from a new user, the SMPT server responds with a "temporary error", and makes the sender retry. After a delay, (which could be 90 mins), it accepts the email, and in future, applies no delay. This is effective, since spammers nearly always give up on the first attempt, while legitimate email nearly always makes multiple attempts.

More here:
https://en.wikipedia.org/wiki/Greylisting
1
 

Accepted Solution

by:
TTAF4 earned 0 total points
ID: 41867874
Turns out that this was an issue on the ironport itself and could only be resolved by Cisco
0
 

Author Closing Comment

by:TTAF4
ID: 41875255
I had to log a call with Cisco. Only they could resolve this issue.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Quality of Service (QoS) options are nearly endless when it comes to networks today. This article is merely one example of how it can be handled in a hub-n-spoke design using a 3-tier configuration.
Many of the companies I’ve worked with have embraced cloud solutions due to their desire to “get out of the datacenter business.” The ability to achieve better security and availability, and the speed with which they are able to deploy, is far grea…
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…

636 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