So just to clarify.. we have one exchange server that host multiple domains. I'm assuming by your answer the "sector" will change when I choose a new DKIM to setup for each domain or I just choose a selector key for each domain I setup.
Originally Posted by: AKPTN
You can use default selector "s1024" for all domains.
selector indicates your DKIM public key location.
For example:
- If your domain selector is: s1024, your public key record should be s1024._domainkey.yourdomain;
- If your domain selector is: mta1, your public key record should be mta1._domainkey.yourdomain.
Therefore, even you use same selector for every domain, the public key location is different, because the domain name is different.
No matter how many domains you will create, the default setting is ok.
