[Mailman-Users] problem with Mailman on Mac OS X Snow Leopard client

2011-10-11 Thread Graham Young
Mail generated by Mailman hangs in my dedicated, on-board MTA's queue unless I 
remove a certain bit of custom Postfix configuration that I entered following 
instructions kindly posted here by one Larry Stone. The instruction in question 
are those for building Mailman on above platform directly from code downloaded 
from a source referenced on list.org and the configuration in question is one 
involving alias maps. 

Everything about this build of Mailman seems to be working fine. I can create 
lists and add or remove members. New members receive the expected mail--but 
here's the catch: only if I remove the above mentioned bit of custom Postscript 
configuration.

I came to suspect this bit of custom Postscript configuration exactly because 
Postfix reported an error involving it. Therefore I removed the bit of custom 
Postscript configuration to see if the queue would clear and it did. 

Everyone got their mail.  

However and of course, I question whether I can just remove this bit of custom 
Postscript configuration without consequences. Mailman-users may seem unlikely 
as a place to inquire about this; but, again, the instruction to use this bit 
of custom Postfix configuration came from a poster to this list whose 
particular posting is cited on list.org as authoritative. 

I am running Mailman on an Intel Mac mini with the client version of Mac OS X 
Snow Leopard installed. I will gladly post more details about my platform 
although I am not sure what might be needed.

The bit of custom Postfix configuration that I've experimented with removing is 
exactly as follows:
hash:/etc/postfix/aliases

The context in which this bit is supposed to appear is as follows:
alias_maps = hash:/etc/postfix/aliases, hash:/usr/local/mailman/data/aliases.

I just remove the bit, leaving:
alias_maps = hash:/usr/local/mailman/data/aliases.
Again, with just this as remnant of my custom Postscript configuration, 
Mailman-generated mail gets sent. 

The error message that Postfix repeatedly issues when I don't have the suspect 
portion of this bit of custom Postscript configuration removed is as follows:
Oct 10 21:10:05 email postfix/local[75578]: fatal: open database 
/etc/postfix/aliases.db: No such file or directory
Oct 10 21:10:06 email postfix/master[141]: warning: process 
/usr/libexec/postfix/local pid 75578 exit status 1
Oct 10 21:10:06 email postfix/master[141]: warning: /usr/libexec/postfix/local: 
bad command startup -- throttling
Oct 10 21:11:06 email postfix/local[75583]: fatal: open database 
/etc/postfix/aliases.db: No such file or directory
Oct 10 21:11:07 email postfix/master[141]: warning: process 
/usr/libexec/postfix/local pid 75583 exit status 1
Oct 10 21:11:07 email postfix/master[141]: warning: /usr/libexec/postfix/local: 
bad command startup -- throttling
Oct 10 21:12:07 email postfix/local[75584]: fatal: open database 
/etc/postfix/aliases.db: No such file or directory
Oct 10 21:12:08 email postfix/master[141]: warning: process 
/usr/libexec/postfix/local pid 75584 exit status 1
Oct 10 21:12:08 email postfix/master[141]: warning: /usr/libexec/postfix/local: 
bad command startup -- throttling
Oct 10 21:13:08 email postfix/local[75593]: fatal: open database 
/etc/postfix/aliases.db: No such file or directory
Oct 10 21:13:09 email postfix/master[141]: warning: process 
/usr/libexec/postfix/local pid 75593 exit status 1
Oct 10 21:13:09 email postfix/master[141]: warning: /usr/libexec/postfix/local: 
bad command startup -- throttling

One can see why I investigated Postscript alias maps upon seeing these log 
entries. I obviously don't understand them, though. 

Finally, inasmuch as it may be relevant, I next post feedback that I get from a 
certain postconf command, specifically postconf alias_maps:
alias_maps = hash:/etc/aliases

Seeing this as the feedback to said command, makes we wonder: Wouldn't the 
correct feedback here include reference to Mailman's own aliases file given 
what remains of my custom Postscript configuration? 

Anyway, something is certainly wrong. Assistance, if offered, will be much 
appreciated. Indeed thanks for even reading this since its the first thing I 
hope for that people read about my problem. 

Hopefully, I have posted well for starters but i am more than happy to take 
hints about what else I need to submit. I am a first time poster. 

Graham

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Re: [Mailman-Users] problem with Mailman on Mac OS X Snow Leopard client

2011-10-11 Thread Larry Stone

On Mon, 10 Oct 2011, Graham Young wrote:

Mail generated by Mailman hangs in my dedicated, on-board MTA's queue 
unless I remove a certain bit of custom Postfix configuration that I 
entered following instructions kindly posted here by one Larry Stone.


I guess I'm best to answer this.


The bit of custom Postfix configuration that I've experimented with 
removing is exactly as follows: hash:/etc/postfix/aliases


The context in which this bit is supposed to appear is as follows:
alias_maps = hash:/etc/postfix/aliases, hash:/usr/local/mailman/data/aliases.

I just remove the bit, leaving: alias_maps = 
hash:/usr/local/mailman/data/aliases. Again, with just this as remnant 
of my custom Postscript configuration, Mailman-generated mail gets sent.


alias_maps is this list of aliases, local addresses which do not get 
delivered locally but rather get sent elsewhere. That could be another 
address (for instance, on my system, postmaster is an alias for me so I 
get all postmaster mail) or for Mailman, a pipe to the Mailman mail input 
script.


The error message that Postfix repeatedly issues when I don't have the 
suspect portion of this bit of custom Postscript configuration removed 
is as follows:
Oct 10 21:10:05 email postfix/local[75578]: fatal: open database 
/etc/postfix/aliases.db: No such file or directory


It means exactly what it says. /etc/postfix/aliases.db does not exist.

Finally, inasmuch as it may be relevant, I next post feedback that I get 
from a certain postconf command, specifically postconf alias_maps: 
alias_maps = hash:/etc/aliases


That should be the outpust of postconf -d alias_maps. -d means the 
default value. On my system (and I have never touched this part), 
/etc/aliases is a softlink to /etc/postfix/aliases (in other words, just a 
pointer to that file).


So the real is why does /etc/postfix/aliases.db not exist. It's not really 
required and it isn't part of Mailman. I had assumed it was past of the 
standard Postfix installation on OS X client but perhaps not (or maybe it 
was and no longer is but I didn't realize that because I've been upgrading 
or moving all the way from 10.3.


(a digression as to how aliases.db is created. aliases is a text file in a 
prescribed format. To turn it into the hash table Postfix wants to use, 
it's run through postmap. postmap hash:aliases created aliases.db)


The purpose of that customization is to append Mailman's alias file to the 
existing alias file.


If you don't have /etc/postfix/aliases.db, then don't include it in 
alias_maps. It's that simple. If you have a different aliases file, use 
that in place of /etc/postfix/aliases in alias_maps.


The best way to do this is to look in your Postfix main.cf for an earlier 
definition of alias_maps. So if you find

alias_maps = hash:foo, then replace my instructions with
alias_maps = hash:foo,
  hash:/usr/local/mailman/data/aliases

If there is no prior definition of alias_maps in main.cf, then do
postconf -d alias_maps and then:
alias_maps = (whatever postconf -d alias_maps returned),
  hash:/usr/local/mailman/data/aliases

However, please note that my instructions assume and expect familiarity 
with Postfix. If you don't understand Postfix, you will almost certainly 
have other problems in the future.


-- Larry Stone
   lston...@stonejongleux.com
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