Request for mailing list change - obscure email addresses 🔗 link

Can the mail archives/mail list be changed to obscure the email address used to send messages.

eg.  instead of a to/from address showing up as 
user-79a7e6626198@xymon.invalid 
can it be changed to 
username at xxxxxxxxxx

I have not had any spam to this account, within 24hrs of posting a message to the hobbit list I am now on spam lists.

Maybe the latest version of the mailing list software will do this, an example I can refer to is here:

http://www.sage.org/lists/sage-members-archive/2008/threads.html

Thanks

Craig

On Thu, July 17, 2008 08:29, Craig Cook wrote:

I'm afraid Elvis has already left the building.  And even if the archives
are redacted, you can count on people subscribing 'bots to mailing lists
just to siphon off poster addresses as the posts arrive.

I _always_ use a disposable address for anything like this.