| D | E | I | M | R | S | T |
| dLimitExceeded | dMBFull | dSystemFull |
| dLocalProcessingError | dOk | dTransactionFailed |
| EIdSMTPServerError | EIdSMTPServerNoRcptTo |
| idSMTP7Bit | idSMTPData | idSMTPRcpt |
| idSMTP8BitMime | idSMTPHelo | IdSMTPSvrReceivedString |
| idSMTPBDat | idSMTPMail | |
| idSMTPBinaryMime | idSMTPNone |
| mAccept | mReject | |
| mLimitExceeded | mSystemFull |
| rAddressOk | rLimitExceeded | rTooManyAddresses |
| rDisabledPerm | rNoForward | rWillForward |
| rDisabledTemp | rRelayDenied | |
| rInvalid | rSystemFull |
| spfFail | spfPass | spfTempError |
| spfNeutral | spfPermError | |
| spfNone | spfSoftFail |
| CT Web help |
| CodeTyphon Studio |