Hi Ben Yes I understand, but I don't want to fiddle until I have some expert advice! You'll understand that many people find this message off-putting when they receive this kind of mail message!
Cheers Derek On 21 Jan 2013, at 10:47, Ben Rubinstein <[email protected]> wrote: > On 21/01/2013 09:51, Derek Cross wrote: >> I understand this is to do with a keychain certificate issue and that I need >> to delete the invalid certificate. >> I admit I was fiddling with this utility a couple of months ago – about >> another matter – and I presumably messed one up or something. > > The message I get says that it's been flagged because the message includes a > digital signature, but the signature is invalid. > > The signature is regarded as invalid, because it was issued by a certificate > authority that my system doesn't trust - ie it's not in my list of trusted > authorities. The authority in question is, err, you. > > In other words, you've got a self-signed certificate. That isn't a problem > in itself, it's just not a useful thing to sign general emails with. So the > problem isn't necessarily to be resolved in your Keychain - it may be just > finding the setting in Apple Mail that is currently set to sign outgoing > email with that certificate, and tell it not to. > > ... but as I've never used Apple Mail, I've no idea where to do that, sorry! > > Ben > > -- > You received this message because you are subscribed to the Google Groups > "Sussex Mac User Group" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/smug?hl=en-GB. >
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