Email Security

We have 100+ OUs that our users are broken into. I am trying to configure a LDAP group query that will test for membership of an OU. I can test using memberof successfully using the DN of that distribution/security group but some of our users are n...

Hi,suddenly we have a problem with all (!) our Ironport appliances (C350 + C650, ASyncOS6.4 and 6.5).At the webinterface in all sections (overview, Incoming mail ...) were unable to choose the time range "month" - only "hour" , "day" and "week" is av...

Hi Everyone,A new question about Incoming Relays and SPF Testing. Currently we have 1 incoming relay setup on our IronPort and we are able to parse emails for SBRS information, but can the same thing be done for SPF testing?Just trying to close a sm...

Hi all, Just going through the mail_logs and I'm seeing the following. SMTP Auth: (ICID 147196) succeeded for user: xxxxxx using AUTH mechanism: PLAIN with profile: SMTP Auth I have set SMTP Auth to use the following LDAP query in System Administra...

Hi All,I'm setting SPF filtering for the first time, and I noticed that I'm not getting any hits with my filters even though when I read through the mail logs, I should be. Can someone point out the error of my ways? I'm currently setup for SIDF Comp...

Hi,I'm using an Ironport C150 with OS v6.4.0-273.This Ironport handles mail for 2 domains, say domain1.com and domain2.com.At the moment I have bounce verification on globally and have set the Ironport to reject bounces with invalid tags. domain1.com...

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 ...