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Tweeted twitter.com/#!/StackSecurity/status/401406493582708736

Noob issue follows:

I'm having an issue with some of my clients being unable to open email attachments when I sign the messages. The error they get is something like (free translation):

Error: cannot open. The digital signature could not be validated.

Checking the sent message with gpg produces the following:

gpg: Good signature from "John Doe <[email protected]>" 
gpg: WARNING: This key is not certified with a trusted signature! 
gpg: There is no indication that the signature belongs to the owner.

I would like to keep signing and eventually encrypt all communications leaving my office, but I need to solve the attachment issue.

  • How would I go about solving this? Is it a matter of the receiving end marking my signature as trusted? Is there a way to do this that doesn't involve an action from the receiver (key server?)?

Thank you

Noob issue follows:

I'm having an issue with some of my clients being unable to open email attachments when I sign the messages. The error they get is something like (free translation):

Error: cannot open. The digital signature could not be validated.

Checking the sent message with gpg produces the following:

gpg: Good signature from "John Doe <[email protected]>" 
gpg: WARNING: This key is not certified with a trusted signature! 
gpg: There is no indication that the signature belongs to the owner.

I would like to keep signing and eventually encrypt all communications leaving my office, but I need to solve the attachment issue.

  • How would I go about solving this? Is it a matter of the receiving end marking my signature as trusted? Is there a way to do this that doesn't involve an action from the receiver (key server?)?

Thank you

I'm having an issue with some of my clients being unable to open email attachments when I sign the messages. The error they get is something like (free translation):

Error: cannot open. The digital signature could not be validated.

Checking the sent message with gpg produces the following:

gpg: Good signature from "John Doe <[email protected]>" 
gpg: WARNING: This key is not certified with a trusted signature! 
gpg: There is no indication that the signature belongs to the owner.

I would like to keep signing and eventually encrypt all communications leaving my office, but I need to solve the attachment issue.

  • How would I go about solving this? Is it a matter of the receiving end marking my signature as trusted? Is there a way to do this that doesn't involve an action from the receiver (key server?)?
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GPG good signature but Warning: untrusted signature

Noob issue follows:

I'm having an issue with some of my clients being unable to open email attachments when I sign the messages. The error they get is something like (free translation):

Error: cannot open. The digital signature could not be validated.

Checking the sent message with gpg produces the following:

gpg: Good signature from "John Doe <[email protected]>" 
gpg: WARNING: This key is not certified with a trusted signature! 
gpg: There is no indication that the signature belongs to the owner.

I would like to keep signing and eventually encrypt all communications leaving my office, but I need to solve the attachment issue.

  • How would I go about solving this? Is it a matter of the receiving end marking my signature as trusted? Is there a way to do this that doesn't involve an action from the receiver (key server?)?

Thank you