[Gllug] Distribution Lists

[Ashley Evans]

Rich Walker wrote:

>Ashley Evans <hoshy at hoshy.co.uk> writes:
>
>  
>
>>Hi,
>>
>>I'm looking into simple methods to create distrbution lists that don't require subscriptions and
>>will only accept mail from internal addresses.
>>
>>I was going to use simple aliases but that would be open to external mis-use. Mailman seems like an
>>overkill. Any ideas of something to do the job, or even how to make postfix only accept mail for
>>list1 at example.com from internal hosts?
>>    
>>
>
>We use mailman for that here. We can then choose on a per-address basis
>whether to make it externally usable (useful for trusted third parties
>and point-of-contact addresses), externally visible (useful for
>collaborations) or whatever...
>
>cheers, Rich.
>
>  
>
Thanks.


I've decided on the alias method for the moment until I need to give 
them something more flexible.  Hopefully never.

For the archives I solved the previous problem by taking note of the 
mail.err message

fatal: parameter "smtpd_recipient_restrictions": specify at least one 
working instance of: check_relay_domains, reject_unauth_destination, 
reject, defer or defer_if_permit

and added the following to main.cf:

smtpd_recipient_restrictions =
        check_recipient_access hash:/etc/postfix/access,
        permit,
        reject

the idea being to allow everything except those addresses explicitly 
listed in access.

As the configuration matures this will probably change but it does 
suffice for the moment.

Ashley

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