On 02/22/2017 03:31 PM, Wietse Venema wrote: > Marek Kozlowski: >>>>>> Why in this case: >>>>>> >>>>>> `sth1': someone1 -> someone1,someone2 >>>>>> `sth2': someone2 -> someone3 >>>>>> >>>>>> someone3 receives the mail in two copies?? >>>>>> (someone1 receives it once) >>>>> >>>>> Set "enable_original_recipient = no" if you don't want that, and >>>>> see http://www.postfix.org/postconf.5.html#enable_original_recipient >>>>> for why this rain damage exists. >>>> >>>> No, it has nothing to do. With both settings it works the same. >>>> >>>> Moreover: >>>> >>>> `sth1': someone1 -> someone1,someone2 >>>> `sth2': someone2 -> someone2,someone3 >>>> >>>> `someone1' receives one copy, `someone2' - two... and `someone3' - >>>> three... >>> >>> You forgot to 'postfix reload' >> >> Absolutely not. > > With Postfix >= 2.2 and "enable_original_recipient = no", the cleanup > daemon deduplicates recipients OF THE SAME MESSAGE INSTANCE regardless > of whether the recipients are 'original' to the request, whether > the recipients are derived through virtual_alias_maps or canonical_maps, > or whether the recipients are added with always_bcc, sender_bcc_maps > or recipient_bcc_maps. > > This is easy to verify by examining cleanup_out_recipient.c, which > is the only function that appends recipients to a queue file. > > If that function doesn't deduplicate, then someone has 'improved' > the cleanup_out_recipient.c code, for which I take no responsibility. > > I won't answer to follow-up unless they are concrete enough (includinbg > Postfix build information) that they can be verified independently.
I don't think that someone modified the sources cause that is ArchLinux which almost always fully relies on upstream; it never happens that they "improve" nor modify the upstream stable code if it works. I'm using the up-to-date version which is 3.1.4-1. Ask for any parameters and I'll send them. I'm not sure how can I display compile options or build parameters (do postconf does it?). Best regards, Marek
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