I have been working with the premise that postmaster and abuse email accounts could be operated as alias email addresses. However, for whatever reason, a check this morning using DNSTUFF's Professional Toolset results in reporting no abuse or postmaster email exists.
Perhaps this is result of how the toolset checks for email addresses. Afterall, it is a rather dated toolset and perhaps never been updated, particularly since acquired by SolarWinds no longer a subscription DNS Tool. Thoughts? Martin