Email Security

Hello, Cisco IronPort customers that use local AsyncOS upgrade instead of dynamic upgrades will be unable to perform upgrades at this time. We are currently working on a solution that could be implemented by early next week. Note: * By default, Cisco...

Info: New SMTP ICID 3607 interface smtp (x.x.x.x) address y.y.y.y reverse dns host y-y-y--y.zzz.zzzz.net verified noInfo: ICID 3607 ACCEPT SG None match ALL SBRS NoneInfo: ICID 3607 lostInfo: ICID 3607 closeWe try to use a mail server to do SMTP-AUTH...

It looks like to me certain reputation method use the EHLO hostname to match the return-path domain part or the From: domain part.Can I do that customization in C series? Say, via outbound content filter?Or should I just no need to worry about remote...

What is everyone's thoughts/expierence with trying to enforce valid FROM e-mail addresses? I work for an organization of 16,000 users and currently any IT person can write a script to send e-mail FROM any address even an invalid one. The problem th...

Dear Colleagues, Can I configure an Ironport Anti Spam device to quarantine all suspect messages including the ones  rejected/bounced by reputation filtering? By default these are rejected but not stored anywhere and no information  about them is ava...

So I'm looking for some assistance with reporting in terms of seeing how much outbound email is sent encrypted using one of our two encryption policies.  We use a Content Filter that encrypts off of Keyword in Subject Line and we have a DLP Policy in...

Can someone point me to any documentation or outline here how the CRES service works in regards to encryption keys and securing transmission between my on-premise IronPorts and the CRES url?I know that I had to "provision" the service and I successfu...

Is it possible to setup an incoming mail policy that checks the text of a hyperlink against the actual address of the link?  For example if someone receives an email with a hyperlink and the text in the email is "click here" and the link goes to www....

I'm thinking of creating a second outlgoing mailflow policy for development servers that send email.  Currently we do this through Exchange Hub Transport server but it seems to me that I couldcontrol and secure this activity with the ironport - plus ...

This may be very simple to do but haven't configured Ironport appliances before. I need to allow TLS from a postini businesspartner. Should I be configuring a new listener? Or can I add the vendor's domains to the current incoming mail listener and a...

The Tech Support Tunnel.

I am trying to configure spam notifications on an Ironport C360, the help link shows a window with information for making this configuraiton but does not show where, in the ironport menu, the Configuring Spam Notifications page can be found or access...