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The following symbols are currently used:
| Issue description or comment was created from incoming email |
| Email was encrypted, has been decrypted (encryption type preceding this symbol) |
| Email was encrypted with a key that was not found in the server keystore, so could not be decrypted |
| Email was encrypted, but could not be decrypted for any other reason (refer to log file for details) |
| Email was signed, and signature has been successfully verified |
| Email was signed, but certificate issuer could not be verified |
| Email signature verification failed, so email may have been tampered with |
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