When you buy a multi-domain SSL Certificate and you include several domain names and/or sub-domains in it, the Certificate Authorities require you to pass the domain validation for each and every domain name and/or sub-domain that you included in your multi-domain SSL Certificate, and only after that the multi-domain SSL Certificate will be issued to you.
POSSIBLE PROBLEM: Sometimes the email addresses, or your HTTP options, or the DNS records that you choose for your multi-domain certificate do not get set correctly when they reach the Certificate Authority. You will know that when you see that you only got one single domain validation message to your email address instead of getting several domain validation messages, or your multi-domain SSL Certificate’s status still shows as “Awaiting Validation (Full)” even though you passed the domain validation for one of the domains.
HOW TO FIX: There is an easy way to fix that, and that requires getting in contact with the Certificate Authority’s Validation Department. When you contact them, please provide them your “Partner Order ID” (see screenshot on the right), and then tell them about the domain validation method that you chose to go with: HTTP, DNS or Email. If you chose to pass the domains validation by email, then double check with the Validation Department representatives what email addresses are set in their system, and ask them to send you the domain validation messages to your desired email addresses.
Comodo (now Sectigo)/GoGetSSL
Please call Comodo/Sectigo Validation Department at +1 (888) 266-6361 (Ext 4) or https://sectigo.com/about/contact for the above stated reasons. When you talk to them, you will need to provide them your “Partner Order ID”.
Thawte, GeoTrust, Symantec/VeriSign
Please call Thawte, GeoTrust, Symantec/VeriSign Validation Department at +1 (520) 477-3152 (Ext 2) for the above stated reasons. Please note that Thawte, GeoTrust, Symantec/VeriSign are all owned by Symantec, and they all have the same phone number provided above. When you talk to them, you will need to provide the “Partner Order ID”.