Email Security

I have read the PostX system will attempt delivery to a MX record first and then if unsuccessful it will send to the A record. I need to configure the Ironport to only deliver mail to domains with vaid MX records. The reason being if a bounce is gene...

I have run into an issue that I hope someone can help me figure out. We recently upgraded to exchange 2007 and apparently there are a few changes in how it handles email.We currently use our system to process mailing lists for our membership. we do...

the release notes state that its available for the M series, but when I try and upgrade its not listed.

This is probably a really stupid question, but I can't seem to find the answer in the Knowledgebase or the manuals...I've got a C-series on trial at the moment, primarily for the encryption feature. I've worked out how to get it to send encrypted me...

With 77 content dictionaries we exceed the total of 32 (Userguide 6.4.0, p.360)Thought this is hardcoded in the AsyncOS?

I have a ironport c350 set up in my mail environment to filter both incoming and outgoing mail. Recently (do to phishing scams) several of our users mail accounts became compromised, and started sending out a ton of spam. I would like to be able to t...

What happens when none of the content filters enabled for a particular policy have final actions? Is the default final action to deliver the message after applying all the relevant non-final actions? This is how it works for message filters, but I'm ...

Hi,One of my users advised me an external client received a particular mail they had sent them an hour after it was sent. When i check the logs and did a findevent on the message i found the information as seen below. Can anybody tell me though, wa...

The Sender unable to receive delivery and read receipts through ironport (outbound).How does the delivery and read receipts works in ironport?However, The Sender able to receive delivery and read receipts without ironport (outbound).Please help!Alex ...

Dear All,I have changed password of C150 email security appliance before 10 to 15 days. I used that changed password many times and it works very fine. but today i can rebooted c150 server it will not accept my changed password and also not accepting...

Is there a command within the CLI tool you can run to display the senderbase score for a particular domain?When i view message details within the tool i can see it does give the actual senders score when a particular mail came in, but i'd prefer to b...

With IP going to IPAS only soon, I wanted to know what you thought of the effectiveness of IPAS vs Brightmail.For the past month I have done a production trial on IPAS (turned off BM and turned on IPAS). While I find that it has eliminated Image Sp...

Hello!I have a mail-in database which is primarily used to recieved weekly and monthly reports genereted from our 2 C350s. However, the mail-in database is also "spammed" by delivery failure reports which cannot be delivered because the recieving use...

We're migrating to IronPort from Mimesweeper 5.2, and we have ALOT of Distribution groups.In mimesweeper you can delegate end user spam quarantine access to whoever you want. That means that all spam to distribution groups (or at least the majority) ...

Beginning yesterday (Nov 13) at about 17:00 eastern time, we have seen a drastic decrease in messages stopped by Reputation Filtering and an large increase in Spam Detected. The drop is from about 97% to 89%. Spam Detected has risen from 1.4% to 7.6%...