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LISTSERV Statistics

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



LISTSERV Today

Number of public lists

47,412

Number of local lists

279,310

Total number of lists

326,722

Total membership (public+local)

86,861,784

Total messages delivered today

14,392,908

Last update: 22 May 2024



Largest LISTSERV® Sites

Largest volume
(deliveries per day, flat monthly average)

789,155

JISCMAIL.AC.UK

  • EPYC 7452 32-Core HT 512k (8192M)
  • Windows Server 2019 Standard x64 Edition
  • Postfix

Largest number of subscribers
(all lists on this server)

5,519,780

LISTS.PSU.EDU

  • 16-CPU 2.5GHz Xeon Gold 6248 (32064M)
  • Linux 3.10.0-1160.108.1.el7.x86_64
  • sendmail 8.15.2/8.15.2

Largest number of lists

28,576

LISTES.ULAVAL.CA

  • 2-CPU 2.5GHz Xeon (3840M)
  • Linux 3.10.0-1160.90.1.el7.x86_64
  • sendmail 8.14.7/8.13.8

Largest mailing list
(number of subscribers)

43,113

SAFETYNOTICE@LISTSERV.UC.EDU

  • 4-CPU 2.6GHz Xeon Gold 6132 1M (8192M)
  • Windows Server 2019 Datacenter x64 Edition
  • EDT

Last update: 22 May 2024








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