Does SpamSieve add headers?

Am I correct in thinking that SpamSieve does not add any headers to emails it processes?

I’m troubleshooting regex search patterns for Dreamhost’s server-side message filters and want to rule out the possibility that SpamSieve is adding the following headers (after DH’s filters have already fired):

  • ARC-Authentication-Results:
  • Authentication-Results:


Correct: SpamSieve does not add headers or modify the message content in any way.

1 Like