This call retrieves the error code from the signature, which can be passed to opendkim.get_errorstr
to get a string describing the error. This function uses the signature handle found by opendkim.get_signature()
to pull the selector from. Internally, this function calls opendkim.get_signature()
, so there is no need to explicitly call it yourself.
Type: undefined
- throws an error if there is no signature on the message.
- returns an integer representing one of the possible error values.