Email Security

A customer has 2 x C170's clustered. Bounce Verification is enabled with a Tag / Key entered. Normal email flow and replies to emails work fine. Inbound Out Of Office replies to the customer are being blocked by the Ironport with the following error:...

Hi guys,Can you help me with this problem with inbound mails. From certain domains i get this response on ESA(TLS failed. Reason: Unknown Error).  After that the receiving is aborded. What may be the cause of this. Current version of my OS is 14.2.1....

Hi,We have the "Rate Limit for Envelope Senders" alert set up on ESA for outgoing emails and all ESA admins receive them when triggered. I was wondering if there is a way generate an automatic email to the offender at the same time asking him to expl...

Hi,I have more and more often a legitimate domains whichs is compromised.These domains have never been used to send email to my company before.Now attacker sends email from theses domains with a phishing link to me.Cisco security proxy did not detect...

How to block the URL in IronPort  https://example.domain.com/.* ?

I want all the spam quarantine to be sent to the administrator, not to all end users and I also want it to be sent at the time I require.

New to ESA and receiving the following error.When running nslookup for query I am receiving: Non-Existent hostname looking up A record for "<domnain>.group"I can ping all DNS and DC its connected to. 

I was reading about the newest email protection standard.  Can you say if this will be implemented on the IronPorts? https://www.dmarcanalyzer.com/arc-is-here/ Thanks!

Hello, Currently, we have a C100v in version 14.0.0-698.  We want to create an identical VM on a more up-to-date ESXI infrastructure. Unfortunately  Actuellement nous avons une appliance C100V en version 14.0.0-698, the only available on the Cisco We...

Hello,  We have some HAT overview with this configuration Sender Group : SUSPECTLIST Mail Flow Policy : THROTTLED THROTTLED configuration have connection behaviour Reject   The question is why email sender that categorized as SUSPECTLIST still accept...

Hello,We have set up the Spam Quarantine notification settings on our SMA per Cicso's user guides. We set it up so that just our team's AD Group should receive the notification (we're using LDAP). However none of us are getting anything. I was thinki...