Mailman 3 April 2000 - Mailman-Users

Attachment handling query and/or feature request
by Michael Sweeney April 4, 2000

April 4, 2000

A previous list server we've used had a capability of blocking attachments to list mail and I've searched in vain for a way to do that with mailman. Is it possible? If not, what would it take to add that as a feature in a future rev? Another feature I would like to see is the option of disallowing formatted mail, eg HTML or RTF since the lists I run have many members who don't use MIME enabled readers to get their mail. Any strategies for handling those things? Michael

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Install on a Cobalt RaQx
by Dennis April 4, 2000

April 4, 2000

Has anyone been able to install MailMan on a Cobalt RaQ2 or RaQ3 server? If so please let me know as we are having problems getting the scripts to run through the cgi wrapper. -Dennis

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Re: [Mailman-Users] (no subject)
by J C Lawrence April 4, 2000

April 4, 2000

On Tue, 4 Apr 2000 09:34:11 -0700 Herman Knief <hknief(a)auctionwatch.com> wrote: > One problem that you may be running into is file descriptors. If > you're running a stock RedHat kernel, you run out of fd's at some > ridiculously low number (I think 1024). There are some published > docs on increasing the number of file descriptors and and the > default number of open files allowed per process, which is > something that I have done on my systems. My experience … [View More]is that the 1024 filehandle limit is not a problem, and that the _system_wide_ limit (usually 4096) was my problem here (I have SMTP_MAX_RCPTS set to 10 in Defaults.py and have some fairly large lists resulting in large spool bombs and explosions of queue runners). For recent kernels (probably anything in the 2.2.* series, I know this works for 2.2.10), do a: echo 8192 > /proc/sys/fs/file-max as per Documentation/proc.txt in your kernel sources: --<cut>-- file-nr and file-max The kernel allocates file handles dynamically, but as yet doesn't free them again. The value in file-max denotes the maximum number of file handles that the Linux kernel will allocate. When you get a lot of error messages about running out of file handles, you might want to raise this limit. The default value is 4096. To change it, just write the new number into the file: # cat /proc/sys/fs/file-max 4096 # echo 8192 > /proc/sys/fs/file-max # cat /proc/sys/fs/file-max 8192 This method of revision is useful for all customizable parameters of the kernel - simply echo the new value to the corresponding file. The three values in file-nr denote the number of allocated file handles, the number of used file handles, and the maximum number of file handles. When the allocated file handles come close to the maximum, but the number of actually used ones is far behind, you've encountered a peak in your usage of file handles and you don't need to increase the maximum. However, there is still a per process limit of open files, which unfortunatly can't be changed that easily. It is set to 1024 by default. To change this you have to edit the files limits.h and fs.h in the directory /usr/src/linux/include/linux. Change the definition of NR_OPEN and recompile the kernel. --<cut>-- -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=-- [View Less]

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Re: [Mailman-Users] more header munging
by J C Lawrence April 4, 2000

April 4, 2000

On Tue, 4 Apr 2000 09:32:46 -0700 Gregory Leblanc <GLeblanc(a)cu-portland.edu> wrote: > Hey there! I've got a number of lists, and I'm sure that my setup > is pretty common. We've got, for this example, two lists > list-announce, and list-discuss. The announcements is a low > traffic list for sending announcements, while the discuss list is > designed to be a place to hold all discussions. The announce list > is moderated, and what I'd like to happen is to have … [View More]

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Re: [Mailman-Users] (no subject)
by J C Lawrence April 4, 2000

April 4, 2000

On Tue, 4 Apr 2000 12:27:55 -0400 Jerry Thomas <jerry(a)scoregroup.com> wrote: > I am running mailman on a redhat 6.1 box with sendmail. The > distribution list which we post to has about 50,000 people on it > and is getting killed with our weekly mailings. I have heard that > FREEBSD with postfix is more efficient any suggestions? In exactly what way is it "getting killed"? General advice: -- Lose sendmail. Postfix is an excellent choice to use instead, as is Exim or … [View More]

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Why is the BETA version the current version?
by Gregory Leblanc April 4, 2000

April 4, 2000

I don't get it. Shouldn't the latest version be a NON beta release? With an open sores software project, the latest and greatest code should always be available to whoever wants to run code that may be unstable. Beta implies that it's not ready for general consumption, so why is it listed as the latest version? Greg

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prevent non-members from posting?
by Dave Robbins April 4, 2000

April 4, 2000

Hi, I just installed mailman 1.1 and am just in the testing phase of implementing. I've searched all the docs but still haven't found if it's possible to prevent non-members of a list from posting. Thanks for any pointers and sorry if this is an faq -- didn't see it there either. Dave Robbins

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RE: [Mailman-Users] (no subject)
by Herman Knief April 4, 2000

April 4, 2000

Well, I know for a fact (thanks to /var/log/messages) that I ran out of file descriptors with Mailman and Sendmail using a stock kernel. And from the mods listed on the original message, you'll note the "FD_SETSIZE" value which is coming straight out of 2.2 source. Now, the FD limitation may have been caused by python, generating the message queue, but, saying that sendmail only opens one socket per entry in the queue is a bit misleading don't you think. Realize that sendmail may spawn n … [View More]

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RE: [Mailman-Users] (no subject)
by Herman Knief April 4, 2000

April 4, 2000

One problem that you may be running into is file descriptors. If you're running a stock RedHat kernel, you run out of fd's at some ridiculously low number (I think 1024). There are some published docs on increasing the number of file descriptors and and the default number of open files allowed per process, which is something that I have done on my systems. (I think the basic changes are listed below) Also, going to postfix will dramatically improve your load stats. I run a list with 200k … [View More]

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Sendmail/Linux versus PostFix/BSD
by Paul Tomblin April 4, 2000

April 4, 2000

Quoting Jerry Thomas (jerry(a)scoregroup.com): > Hello, > > Just a question, I am running mailman on a redhat 6.1 box with sendmail. > The distribution list which we post to has about 50,000 people on it and is > getting killed with our weekly mailings. I have heard that FREEBSD with > postfix is more efficient any suggestions? Most of the performance hit there is because sendmail sucks. You'll get 99% of the performance increase by switching MTAs to postfix that you would … [View More]

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