[HCoop-Help] CNAME records with underscores

[almiqui]

As part of my ongoing struggle to set up working e-mail addresses at my 
HCoop domains, I need to add a CNAME record with an underscore in the 
"domain name" field. This is allowed by the DNS standard, but the type 
signature of the Domtool dnsCNAME directive prevents it, putting Domtool 
out of compliance with the standard.

   https://serverfault.com/a/928204

I've reported this bug, which looks relatively easy to fix, but I'm not 
optimistic about it being addressed anytime soon.

   https://bugzilla.hcoop.net/show_bug.cgi?id=1378

Is there any workaround I can use? Maybe some way to produce a dnsRecord 
value by hand?

Best,

     Aaron