[Bug 1845751] Re: cc modification due to nodup setting breaks DKIM & thus DMARC

Mark Sapiro mark at msapiro.net
Fri Oct 11 14:33:48 EDT 2019


My comment #3 is incorrect and comment #2 is correct in that "when the list suppresses sending to a given user, it rewrites mail headers to drop that user from cc" is correct, not backwards as I claimed. I.e., the paragraph
```
With respect to comment #2, it asserts "when the list suppresses sending to a given user, it rewrites mail headers to drop that user from cc". This is backwards. A member's address is removed from Cc only if the member's "avoid duplicates" setting is off, not on. This only affects the scenarios in that the premise becomes "User A is a user with the feature disabled".
```
should be ignored and the final "why only addresses that don't "avoid duplicates" should be "why only addresses that "avoid duplicates".

My apologies for my confusion and any that I caused in others.

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Title:
  cc modification due to nodup setting breaks DKIM & thus DMARC

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