I have an pair of Ironport c350's as of yet, SPF is not enabled. We have an agency that has their own Filtering solution behind the IronPorts. They have SPF enabled, and one of their senders has also enabled SPF, and as you may have guessed, they are...

We have particular email host we seem to be having problems sending to. I am pretty sure its something o their end. But I am providing info from our Mail Flow Central logs. There is one that I don't believe I've seen before. Does anyone know what thi...

I have one host that seems to have a real hard time sending us email. I see many "Message Aborted" entries in Mail Flow Central. Often it looks like the same email being attempted over and over again. Eventually they will be received. Sometimes it ta...

I haven't seen many infected mail come through so far. So I am not sure what this header means. I assume it means that Sophos found, and cleaned Troj/VB-EDF'3'rd. X-IronPort-AV: E=Sophos;i="4.41,333,1241409600"; v="Troj/VB-EDF'3'rd"; d="txt'?e...

My c350 is set to update, but doesn't. I go to "Security services", and down to "service updates" and all the URLS are there, and interval is set to 11m. Yet every time I look, I am behind, and I force an update, and its all good until I look at it a...