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m85476585

macrumors 65816
Original poster
I'm not really sure where to ask this question, but here goes. I sent an email to myself today, and I noticed that in the message header there is this line:
Code:
Received: from xxxx-00-00-000-0.xxx.xxx.xx.com ([00.00.000.0] helo=Matts-Computer.local)

xxxx-00-00-000-0.xxx.xxx.xx.com is obviously my ISP added by the email server (redacted here, since I don't want to post potentially identifiable information), and helo=Matts-Computer.local has the name of my computer.

My issue is that I don't want Matts-Computer to appear in all my sent emails. I know it's not exactly sensitive information, but I don't necessarily want to be sending it out to everyone. It should be internal to the computer, as far as I'm concerned, or at least restricted to my local network. The string appears both on my home network (behind my router), and on this shared wifi network I'm currently on.

Does anyone know if there is a way to keep my computer from sending the helo= string? Is there any way to change it to be more anonymous (like computer-w5v6qgf)? I don't just want to change the name of my computer in OS X since that should only be seen on my local network.

I'm using Thunderbird as my mail client, and I couldn't find anything on this issue when I searched. All I found was related to linux/unix servers, which is why I suspect it might be OS X related, but I don't have an SMTP server running locally, so none of the things I found are relevant.

I haven't tested it on Windows yet since I have to set up thunderbird on vmware.
 
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