| Value | Meaning |
|---|---|
| Valid1 | The signature is fully valid. |
| Green2 | The signature is good. |
| Red4 | The signature is bad. |
| KeyRevoked16 | The key has been revoked. |
| KeyExpired32 | The key has expired. |
| SigExpired64 | The signature has expired. |
| KeyMissing128 | Can't verify due to missing key. |
| CrlMissing256 | CRL not available. |
| CrlTooOld512 | Available CRL is too old. |
| BadPolicy1024 | A policy was not met. |
| SysError2048 | A system error occurred. |
| TofuConflict4096 | Tofu conflict detected. |
A value representing the signature status bit flags for a particular #GMimeSignature.