Knowledgebase

The total size of attachments sent to support, e.g., screenshots, must be limited to less than 5 megabytes in size. As an example, a user may submit 3 attachments of 1 megabytes each in the same email, but may not submit 3 attachments of 2 megs each in the same email. This is because the latter example totals 6 megabytes in attachments, which is over our 5 megabytes limit. Also note that some email clients may attach more information to the file(s) you are attaching. As a result, you may ...
First make sure that you have registered your email address on our support site. Then follow the instructions below: In order to change the email address associated with your Comodo account you will need to send a request from the email currently associated with the account to accountchanges@comodo.com. If you are unable to send from the email address which we currently have on record then the new email address for the account must be at a domain which is currently associated with the a...
SHA-2 SHA-1 (Legacy) Product Certification Path (Hierarchy) Certification Path (Hierarchy) EV [ inc. EV SGC & Multi-Domain ] * UserTrust / AddTrust External Root * COMODO RSA Certification Authority * COMODO RSA Extended Validation Secure Server CA * END-ENTITY/DOMAIN CERTIFICATE Download Files [https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/977/108/extended-validation-sha-2] * UserTrust / AddTrust External Root * COMODO Certifica...
SSL CERTIFICATE INSTALLATION FOR EXCHANGE 2013 If you have not yet created a Certificate Signing Request (CSR) and ordered your certificate, see Exchange 2013 CSR Generation [https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/998/19/exchange-2013-ssl-csr-creation] Using COMODO step-by-step Installation instructions for Exchange 2013 will help you navigate the updates made in the new version of Exchange. Please use the tutorial below or contact our support team if you run...
EXCHANGE 2013 SSL CERTIFICATES CSR CREATION HELP If you already have your SSL Certificate and just need to install it, see Exchange 2013 SSL Installation Instructions [https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/997/37/exchange-2013-ssl-certificate-installation] There have been many new changes in Exchange 2013. One of those is that the interface is now accessible through a browser. Your Installation of Exchange 2013 will be easier with our great step-by-step tuto...