Largest volume
(deliveries per day, flat monthly average)

840,761

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)

5,266,400

LISTS.PSU.EDU

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

Largest number of lists

27,331

LISTES.ULAVAL.CA

• 2-CPU 2.4GHz Xeon (3840M)
• Linux 3.10.0-693.17.1.el7.x86_64
• sendmail 8.14.7/8.13.8

Largest mailing list
(number of subscribers)

300,656

COMPUTING@LIST.MSU.EDU

• 4-CPU 2.3GHz Xeon (15936M)
• Linux 3.10.0-957.el7.x86_64
• Postfix