Email Security

Hi All, We are receiving Spam emails with blank TO address, is there any way we can Quarantine those mails in Cisco ESA. Eg: From : test@domain.com To: Date : 03/09/2016 11:00 AM Subject : Payment Thank you, Vishnu

Hi everyone, We received a couple of suspicious mails lately, one of which contained the zepto Ransomware. Now we're in the process of figuring out why those mails were not blocked and i was wondering if i can check what SPAM Score those Mails recei...

Hi, I am doing a ESA POV for my customer. Deployed the ESA sitting on internal network with one-arm deployment. Firewall is doing the NAT to route incoming SMTP traffic to ESA and then their exchange server. We are facing issue with Microsoft Office...

Hi all, Can anyone tell me for mail filters, what about this regex means (?i)@abc\.com|@efg\.com The bold on the top means what? I cannot find a reference on this , why there must have ?i on it Can someone explain what is that use and meaning of ...

We have a message filter in place that's automatically encrypting the newer office files if they're over 7Mb.  It works well, but I would like to know if it's possible to add a notification to the sender to let them know the message was automatically...

Situation: we face some attacks with executables embedded in Office documents (OLE) where user then click and execute files like exe, bat etc. we use filetype filters to block exe, bat etc. but they do not match with embedded file types! also a probl...

Hi, we are experiencing an increase of phishing mails containing shortened links from services like bit.ly, tinyurl.com or any other selfhosted solution. The ESA does a lookup only with the shortening service website which is mostly neutral and ther...

The ESA C670 cluster has  'System Default' - "Cisco Appliance Demo Certificate" that is active also. In this case, is it safe to delete expired old "IronPort Appliance Demo Certificate" from ESA cluster? Hi .