Email Security

Hi All,Over the past two weeks, I have suddenly started receiving a huge amount of spam.Prior to this time, there was almost nothing of spam received at all.Nothing has changed in my Ironport settings. Anyone suddenly experiencing something similar?

Hello everyone!We got some alarms on our Ironport regarding "Check Open Files or Sockets". It's been bouncing up and down the last couple of days. What does this check mean? Is it the amount of active TCP connections or is it something connected with...

Hello,New to the group.  I'm a System Admin who has been given a lot of additional responsibilities since our IT Manager left the company.  Hopefully I am posting this in the right area.Here's the problem:Time on the IronPort is fine as far as report...

I was wondering if anyone else has been seeing TLS errors on incoming email to an ESA on 8.0.0-617? The senders report this error "(Certificate rejected over TLS. (wrong cipher returned))" and in my logs I see this:(ICID xxx) TLS failed. Reason: (336...

  There is a company that regularly sends us email from a specific address, but it's being prepended with [SUSPICIOUS MESSAGE] and the URLs are being rewritten. How can I exempt this sender from this action? It looks like this would be a new Content ...

Bug in Message Tracking with messages that have high recipient counts?For the past couple of versions on our M670 we have noticied that if we try to show message tracking details for certain search results, the CPU will peg out to 100% on the M670 fo...

we have an ironport cluster that is currently open to anyone inside our network to relay to anyone inside or outside our IP space.  we force all external IP space to authenticate before they can send.we have about 200+ sub domains under our root doma...

Hi,I need your help regarding ESA. I have deployed  ESA in my LAN. I have installed two MDaeom Email software in different  machines and DNS. After installation, i have tried emails between two  different domains within LAN and its working fine. Afte...

I keep getting alerts from my Ironport equipment with the message: The Warning message is: The query Ironport.accept failed with result inquiry timed outAny one experience this before?Thanks for your anticipated feedback

As of 02/19/2014our Cisco ironport started getting failures on senderbase lookups: i.e.  SG UNKNOWNLIST match sbrs[none] SBRS unable to retrieve.... because DNS queries like 49.33.146.216.sb-adfe2ko9.senderbase.org are returning NXDOMAINThis has happ...