On Mon, 28 Apr 2014, Matt Simerson wrote: > > So either DKIM isn't relevant, or something else in my > > qpsmtpd/qmail/ezmlm-idx chain is breaking DKIM. Any suggestions? > > If ezmlm isn't adding a list prefix or message trailers, then it's > unlikely that ezmlm is breaking the messages DKIM signatures. > > Are you using any QP plugins that alter list messages?
Not specifically, and not as far as I know. > (The addition of X-* and Received headers are generally DKIM agnostic). > Altering any message header specifically listed in the DKIM-Signature h > property, or the altering the message body (attachment stripping, > charset conversion, etc.) are the types of changes that are likely to > invalidate a DKIM signature. ezmlm is quite likely to be stripping attachments. > The way to test is create yourself a new list and subscribe to it from a > gmail or yahoo address. Then send messages to the list and check their > headers when they return to your freemail account. Gmail will filter > them to the Junk folder if they fail SPF or DMARC tests. Thanks. I'll do that, then send an invoice for my time to yahoo. :-) > > Matt > >
