[Mailman-Users] bounce mail transfer

[Masaharu Kawada]

Mark-san,

Very sorry to ask you directly.

One question about the format of the alias configuration in
'alias_overrides' you mensioned.

---
LISTNAME-bounces:   "|/path/to/mailman/mail/mailman bounces LISTNAME"

copy that one line exactly to alias_overrides and then add a second line
beginning with whitespace with the second address like:

    test at domain.com
---

About what you said above, do you mean it's supposed to be like below?

$ cat alias_overrides
---
ISTNAME-bounces:   "|/path/to/mailman/mail/mailman bounces LISTNAME"
 test at domain.com
---

I just went back and forth with testing on this, but no luck so far.  So I
just wanna know how the alias_overrides looks like.

Thanks,
Masaharu Kawada


On Wed, Jun 5, 2019 at 11:31 AM Masaharu Kawada <mkawada at redhat.com> wrote:

> Hello Mark-san,
>
> I very much appreciate your answer and that was a big help.
>
> I think the second method you gave me that using alias_overrides is the
> one I need.
>
> Thanks a million!
>
> Masaharu Kawada
>
>
> On Wed, Jun 5, 2019 at 9:38 AM Mark Sapiro <mark at msapiro.net> wrote:
>
>> On 6/4/19 4:55 PM, Masaharu Kawada wrote:
>> >
>> > Are there any ways to have a bounce mail transferred to a specific user(
>> > ex:test at domain.com) instead of the mail sender?
>> >
>> > I haven't been able to find any ways within Mailman configuration, but I
>> > just wonder if we can make it by using any method of postfix side.
>>
>>
>> Yes, you do it in Postfix with aliases.
>>
>> > The "man postfix" says:
>> > =====
>> > -notify_classes (resource, software)
>> >
>> >               The list of error classes that are reported to the
>> postmaster.
>> >
>> > -2bounce_notice_recipient (postmaster)
>> >
>> >               The recipient of undeliverable mail that cannot be
>> returned
>> > to the sender.
>> >
>> > -bounce_notice_recipient (postmaster)
>> >
>> >               The recipient of postmaster notifications with the message
>> > headers of mail that Postfix did not deliver and of SMTP conversation
>> > transcripts of mail that Postfix did not receive.
>> > =====
>> >
>> > So it looks like a bounce mail can be transferred as a copy to a
>> specific
>> > user besides postmaster this way.
>> >
>> > notify_classes = resource, software, bounce  <---Add 'bounce' to the
>> > parameter here.
>> >
>> > 2bounce_notice_recipient = test at domain.com   <---Specify the email
>> address
>> > where you want a bounce mail to be returned.
>> > bounce_notice_recipient = test at domain.com    <---Specify the email
>> address
>> > where you want a bounce mail to be returned.
>>
>>
>> You don't want this because even if you can make it work, it will affect
>> all bounced mail.
>>
>>
>> > The scenario is as follows:
>> > 1.A sender sends an email to a mailing list.
>> > 2.The mailing list has a user that does not exist anymore.
>> > 3.A bounce mail is set to return to the sender.
>> > 4.The bounce mail is sent to one specific user besides the sender.
>> >
>> > Is this the right way? If I am missing anything to make it work, I would
>> > like you to point me to the right way.
>>
>>
>> There are things you can do. First of all bounces are returned to the
>> listname-bounces address to enable automatic bounce processing to
>> disable delivery and ultimately remove bouncing users. What are you
>> trying to accomplish by sending them also to another address?
>>
>> If all you want to do is see them, beginning in Mailman 2.1.19, there is
>> a bounce_notify_owner_on_bounce_increment setting in bounce processing
>> to send them to the list owner. See
>> <https://bugs.launchpad.net/mailman/+bug/1382150>.
>>
>> If this isn't satisfactory, you can look at your Mailman aliases for
>> Postfix which are probably in Mailman's data/aliases and data/aliases.db
>> files. what you need to do is make a second set, say alias_overrides and
>> alias_overrides.db.
>>
>> In aliases you will see the entire set of list aliases for all lists. In
>> particular, for the list of interest there will be a line like
>>
>> LISTNAME-bounces:   "|/path/to/mailman/mail/mailman bounces LISTNAME"
>>
>> copy that one line exactly to alias_overrides and then add a second line
>> beginning with whitespace with the second address like:
>>
>>     test at domain.com
>>
>> Then run
>>
>> postalias alias_overrides
>>
>> to create alias_overrides.db and if necessary change tehe ownership of
>> alias_overrides.db to match that of Mailman's aliases.db and finally, add
>>
>> hash:/path/to/alias_overrides
>>
>> to Postfix alias_maps ahead of the entry for Mailman's aliases.
>>
>> Do it this way because Mailman will periodically update its aliases, at
>> least if you are using Mailman's Postfix integration.
>>
>> Note: this all assumes you are using aliases to deliver from Postfix to
>> Mailman.
>>
>> --
>> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
>> San Francisco Bay Area, California    better use your sense - B. Dylan
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