On 04/03/2019 15:23, Vsevolod Stakhov wrote: > Bill, > > On 04/03/2019 15:11, Bill Cole wrote: >> On 4 Mar 2019, at 6:58, Vsevolod Stakhov wrote: >> >>> Hello, >>> >>> I'm trying to debug one issue with the milter interface in Postfix. I >>> want to remove multiple headers with the same name, for example: >>> >>> X-Spam-Flag: No >>> X-Spam-Flag: No >>> X-Spam-Flag: Not really >>> X-Spam-Flag: No >>> >> >> I have not tested this, but your description is consistent with the >> Milter interface acting immediately on your deletion of the indexed >> header instance and collapsing the array, modifying which index points >> to which data. So, after you delete the 1st "X-Spam-Flag" header, you >> now have 3 instances remaining, with the new 1st instance being the >> former 2nd instance. This way, if you delete the 2nd instance, you are >> deleting what WAS the 3rd. > > It is not consistent with the Sendmail behaviour: > > https://groups.google.com/forum/#!msg/comp.mail.sendmail/Xgl1DE3lTUg/_uaAEmTM8EYJ > > For me, it doesn't make any difference to send `1` 4 times instead of > sending `1, 2, 3, 4` sequence. But I'm worried not to break other MTAs > that use milter protocol. >
Ok, I've just realized that the obviously correct solution of this problem is to delete headers in the reversed order. We can close this question I suppose.
