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If you are seeing an ‘invalid certificate’ message when receiving or sending email @ your domain name, just ‘ok’ it. If you want to know the reason, read this FAQ.

Mail 'invalid certificate' message

Created/Updated: by Graham Street

The server certificates were last updated Saturday 1 April 2017

If you are seeing an ‘invalid certificate’ message when receiving or sending email @ your domain name, just ‘ok’ it.

Not all our customers have configured their email to use a secure connection (also referred to as SSL or TLS) so only some of you may see this message. If you’ve configured your email this way (on your computer, iPhone, iPad, etc), you may sometimes see this message about a new or invalid certificate. This is quite normal. We refresh and replace the server certificates yearly. Just ‘ok’ it and the message will go away until we update the certificate again.

The actual reason for the ‘trust’ issue is that certificates (for https websites and secure email) have to be paid for and signed by a trusted authority. Not everyone’s domains have them or need them. However, to use ‘secure mail’ (which is how yours is set up) there has to be a certificate in place on the server so that the information can be securely sent using https/ssl/tls. Therefore we provide a ‘self-signed’ one (for this use on the server). Because its self-signed, you get a warning to say its not trusted – but its fine for the use you are making of it.


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