On Tue, 26 Jan 1999, Tim Daigle wrote:
> Does anyone know what the upper limit of emails majordomo can handle a day?
> Here's why I ask:
> I have a Dual Pentium Pro 200 with 128 MB of ram. RedHat 5.2 majordomo
> 1.94.4 SendMail 8.8.7
> How many menbers could one majordomo list support if it was a one way list
> (out only)?
> Could it support 500,000 mail messages a day?
> What is the upper limit roughly?
It's tough to say because it depends on what your demographics are. If
you pass things off to a program like bulk_mail (see the FAQ), you can
process MASSIVE amounts of email, but at the sacrifice of memory.
If you are processing .5M messages a day, you should probably increase
your memory to whatever the machine can hold, upgrade to kernel 2.2.0, and
add a huge swap partition to be on the safe side (like, maybe 3GB). The
2.2.x kernels no longer have a swap limitation of 128MB/partition.
I currently have a 14,000-member one-way list that I process in the above
situation and it works well. The machine has 208MB of RAM and about 1.2GB
of swap (lots of partition from the 2.0.x days). The processor is a dual
Also, if you think you'll be invading swap often, you should be sure that
you are on a SCSI subsystem for better access, including Ultra2 if you can
afford/find it, but at least UltraWide.
Finally, for security reasons, you should upgrade your sendmail to version
8.9.2. It has anti-relay protection and just general bugfixes.
Robert Hayden firstname.lastname@example.org UIN: 3937211
Network Engineer MR Net (612) 362-5820