Buy or Renew
Buy or Renew
Duo Security forums now LIVE! Get answers to all your Duo Security questions. Learn more

Email Security

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
cancel
Start a conversation

“Get

 

Forum Posts

Start a conversation

Cisco Secure Email Upcoming Events

Getting Started with Cisco Secure Email Threat Defense Join us as our experts walk you through some of the fundamentals, key concepts, and outcomes of the Cisco Secure Email Threat Defense product. We will help you gain the insight needed to create a...

Virtual ESA

Hi All, i am new in security and going to deploy Virtual Email Security Appliance but little confuse about HAT and RAT example i need to allow following domain form outside allow domains from outside amazon.com smith@amazon.com block domains : anim...

CISCO ESA

Hi All, i am new in Email Security Appliance and i want know how to block following specific words Block Specific Words: unsubscribeNakedWear this During SexSecrets of Sex18+adults only Block Subject Line: NakedWear this During SexSecrets of Sexha...

Resolved! ESA Overall CPU Average Load

Hello,  I am facing the following issue with ESA CPU utilizationI frequently get alerts(zabbix alerts) for CPU util over threshold. Is this the reason ? What could be a fix for these numbers ?[12+12 = 96 ?] CPU UtilizationEmail Security Appliance:12...

Jay Joshi by • Level 1
  • 3211 Views
  • 1 replies
  • 0 Helpful votes

IronPort support

hello, Within the IronPort Portal screen, is there a place where I can click to report a phishing email that passed through the gateway undetected? Otherwise, where can I go to report such incidents to improve the IronPort accuracy? thanks

Resolved! Exchange with TMG

Hello. We have two Exchange Servers 2010 with DAG. They are published by TMG. Is it possible to configure Cisco ESA (Cisco C100V) for incoming/outgoing antivirus and antispam check if we are going to continue still use TMG?

upgrade

System Upgrade —   Processing...Overall Progress:0%   Error during upgradeThe following errors occurred during upgrade:Download error: http://updates.ironport.com/asyncos/phoebe-8-5-6-106/hints/default/1Upgrade exited without success.Please attempt t...

Resolved! bounce verification

Error reports began to come more recently like: #5.0.0 smtp; 5.1.0 - Unknown address error 550-'Callback setup failed while verifying <address@domain.zone>\n(result of an earlier callout reused).\nThe initial connection, or a HELO or MAIL FROM:<> com...

Resolved! What is meaning of status ?

Dear  all,              like the picture,  what is meaning of status "Cisco Email Security Virtual Appliance  - System Administration > Feature Keys > Feature Keys Dormant " ? Who can tell me? Can those feature available?  Thanks a lot! Sin...

360rundll by • Level 1
  • 3609 Views
  • 1 replies
  • 0 Helpful votes

ESA rejecting group emails

We have an issue where all of a sudden emails inbound or outbound are being rejected if part of a group email. Individual emails work just fine but if it is part of a group it gets the delayed errors and finally drops and is never delivered. We have ...

View All