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Last updated March 2020


msys.validate.opendkim.get_sig — Get a signature from a DKIM object


msys.validate.opendkim.get_sig(dkim, num)

dkim: userdata, DKIM type
num: numeric, optional


This function gets a signature (DKIM_SIGINFO) from a DKIM object. It requires the opendkim module.

Enable this function with the statement require('msys.validate.opendkim');.

It takes the following parameters:

  • dkim – array of DKIM_SIGINFO objects returned by the msys.validate.opendkim.verify function.

  • num – index of the DKIM_SIGINFO object that you wish to retrieve. The signature index, must be less than the number of signatures in the DKIM object.

For a description of the DKIM_SIGINFO object, see DKIM_SIGINFO.

This function returns the DKIM_SIGINFO object and the DKIM status DKIM_STAT.

The DKIM status DKIM_STAT can be one of the following values:

  • DKIM_STAT_OK – successful completion

  • DKIM_STAT_BADSIG – signature did not match headers and body

  • DKIM_STAT_NOSIG – no signature present

  • DKIM_STAT_NOKEY – no key available for verifying

  • DKIM_STAT_CANTVRFY – cannot get key for verifying

  • DKIM_STAT_SYNTAX – message is not in valid syntax

  • DKIM_STAT_NORESOURCE – resource unavailable

  • DKIM_STAT_INTERNAL – internal error

  • DKIM_STAT_REVOKED – signing key revoked

  • DKIM_STAT_INVALID – invalid parameter(s)

  • DKIM_STAT_NOTIMPLEMENT – function not implemented

  • DKIM_STAT_KEYFAIL – key retrieval failed (try again later)

  • DKIM_STAT_CBREJECT – callback requested message rejection

  • DKIM_STAT_CBTRYAGAIN – callback cannot complete (try again later)

  • DKIM_STAT_CBERROR – unspecified callback error

See Also

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