DKIM for all domains except which have one

[Richard G]

Hello.
I want to create DKIM records for all domains which do not have one yet.
And in this help section, I found this line:

echo "action=rewrite&value=dkim" >> /usr/local/directadmin/data/task.queue

So this looks fine, I just want to be sure it will only generate records on domains which do not have a dkim record yet, to prevent double DKIM TXT records in DNS.

Does it work this way? Or will this command create a DKIM record even if one is already present?

 

[urgido]

Waiting for an answer too. This is a good question

 

[Richard G]

I just remembered I had a cancelled VPS (but not yet removed) from a friend of mine where I had access to and which already had a DKIM record.
Tested there, nothing wrong happened, so probably the dkim is either left alone or is overwritten.
No double entry's.

So I tested on our live VPS, no problem either. Doing the servers now. Also no double entry's.

So I've answered my own question, there will be no double entry's.

You can use that command too.

 

[scriptkitty]

I just tested, too and it appears that existing DKIM records are not overwritten, either. This is good to know for those that use a remote DNS server and would have had to update the DKIM there if the records had been overwritten.