Email Security

We've received two "block removal" requests from Topica.com recently. Their SenderBase reputation score is a fairly low -3 for many of their "silver" SMTP servers, but some of their servers like the "gold" and "platinum" ones have neutral or good r...

Hi gurus, Whats the best port to use if you have multiple domains in a forest.. Im using 389..would 3268 is ok? please advise..thank you

Hello All,does anyone know a method of detecting TLS encrypted messages within a message filter? I would like to add a footer to all messages received over an encrypted channel. My default email policy is set to "TLS preferred".Thanks,Markus

Hello,We have 3 ESA (one C300 and 2 C350) working in a cluster mode, two of them with an MX record of 50 and another one with 40. And also a C650 for cetralized management. We need to move them all to another data center. The move will take about 2 o...

HiDo you know where can I download the PDF user guide for an M650 appliance?thanks!

I am using a dictionary and content filter to find emails that contain certain terms such as: account number, member number, etc..I am running into an issue where I have a particular email that has a WORD document that contains the following line:acc...

Iv patched them separately before. So Iv been through that process. But now that they are clustered, I am not sure how to proceed. I think i should do this:1) Patch 1 unit. ( warning says all will be disconnected)2) when it reboots, re-join it to the...

When i send a mail from AS/400 to Ironport the char "@" was misinterpreted. AS/400 send's from: ATKTM@KTM.ATIronport Maillog: ATKTM01µKTM.ATMessage Tracking: ATKTM01\xb5KTM.AT any idea ?thanks

We just purchased an Ironport C150 and are in the process of testing it out and getting our setup completed, one of the things we want to do is reject incoming mail if an attachment has a certain file extension to it (ie, .bat but we have about 20 or...

Hi, currently I am utilizing 2 X1050s. I'm getting ready to add in an M1050. Has anyone (or is it possible) set these up to do over quota checks when the mail comes "in the front door?" I would like the M1050 to do the check so that it never gets d...

Hello,I'm having an issue where a particular owner of a domain(IP 202.123.27.157) is getting a bad reputation from senderbase. The IP is not in any blacklists and the owner does use authentication for sending out mails.Given that i implemented a few ...

Hi,I am currently setting up a new IronPort to scan all incoming mail from the internet and then forward it to an exchange 2007 server for deliver. The question I have is related to spammers doing a dictionary attack against valid users to our domai...

My C150 is getting this message and I cannot find anything on it or figure out how to fix it. Any ideas? Thanks!

Hi IronPort Nation,in message Tracking I can configure a search for example to look up envelope sender with keywords "Begins With", "Contains" and "ls". What means "ls"?Can anyone explain the keyword "ls"?With Regards, jpk

Is it possible to allow a specific sender coming from a host with a bad reputation score?Actually a BLOCKED Policy is assigned to that host and the Exception table with a "ALLOW" behaviour to senders EnvelopeFrom address does not work.Any suggestions...