Largest volume
(deliveries per day, flat monthly average)

672,805

JISCMAIL.AC.UK

• 4-CPU 3466MHz Xeon X5690 4x256k (4096M)
• Windows Server 2008 R2 Enterprise x64 Edition
• Postfix

Largest number of subscribers
(all lists on this server)

4,889,108

LISTS.PSU.EDU

• 4-CPU IBM 9076-WCN
• AIX 6.1
• sendmail 8.15.2/8.15.2

Largest number of lists

26,830

LISTES.ULAVAL.CA

• 2-CPU 2.6GHz Xeon (3968M)
• Linux 2.6.18-348.1.1.el5
• sendmail 8.13.8/8.13.8

Largest mailing list
(number of subscribers)

300,671

COMPUTING@LIST.MSU.EDU

• 2GHz Xeon (8064M)
• Linux 3.0.34-0.7-default
• Exim 4.69