sectigo.com

No adequate mechanism to generate S/MIME on modern OSes. Firefox 68ESR and IE 8-11 is not an option. I can't make all users to install browser only for issuing certificate even if it should be done once.

It took 3 support tickets and 1 month to renew our code signing certificate.

3 days ago, I tried the online chat, no one was there to chat with. I then put in a help ticket, still no response other than being sent a case number. The action section says I need to complete steps, but when I click the take action button, it says they've been completed. Today, we received our payment returned in the mail saying it's undeliverible as addressed, but the address matches the US remittance address. I tried the online chat to find out if there was a different address and was told to call in instead. When I asked what number to call, the chat person said if I would click the hyperlink she sent it would tell me what number to call and abruptly ended the chat. Granted, I should have clicked the hyperlink, but I thought that was kind of rude to end the chat so abruptly. This isn't off to a good start.

The renewal of an SSL certificate with Comodo/Sectigo is very complicated, and requires an on-site expert in order to process. Because of that, I recommend renewing for the maximum available length of time (currently 24 months), and putting the renewal anniversary on your calendar 1 month prior to its expiration.

Pro S/MIME advertised as "Validates name, email address and organization". But Organization is just not true. No satisfying response from support - not to say impolite responses. Order Process did not work. Received empty email which should include instructions. Chat support worked. Certificate works except for the not validated organization. Not again.