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LISTSERV Statistics

These statistics are gathered daily by a monitor at L-Soft, which polls all the LISTSERV sites that participate in the open LISTSERV network over the Internet. Corporate servers operating in a closed environment are not included in these numbers.

Statistics at a Glance

LISTSERV Today

Number of public lists

55,992

Number of local lists

339,918

Total number of lists

395,910

Total membership (public+local)

93,999,413

Total messages delivered today

22,698,738

Last update: 25 Sep 2021


Largest LISTSERV® Sites

Largest volume
(deliveries per day, flat monthly average)

787,999

JISCMAIL.AC.UK

  • 2.3GHz Xeon E5-2673 v4 HT 256k (8192M)
  • Windows Server 2019 Standard x64 Edition
  • Postfix

Largest number of subscribers
(all lists on this server)

5,238,038

LISTS.PSU.EDU

  • 16-CPU 2.4GHz Xeon Gold 6148 (32064M)
  • Linux 3.10.0-1160.36.2.el7.x86_64
  • sendmail 8.15.2/8.15.2

Largest number of lists

27,853

LISTES.ULAVAL.CA

  • 2-CPU 2.5GHz Xeon (3840M)
  • Linux 3.10.0-1160.31.1.el7.x86_64
  • sendmail 8.14.7/8.13.8

Largest mailing list
(number of subscribers)

59,191

CAREERCENTERUPDATE@LISTSERV.UGA.EDU

  • 2-CPU 2.6GHz Xeon (7872M)
  • Windows Server 2016 Datacenter x64 Edition
  • envelope-from <>

Last update: 25 Sep 2021





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