Largest volume
(deliveries per day, flat monthly average)

937,536

JISCMAIL.AC.UK

• 4-CPU 3466MHz Xeon X5690 4x256k (10240M)
• Windows Server 2008 R2 Enterprise x64 Edition
• Postfix

Largest number of subscribers
(all lists on this server)

4,851,433

LISTS.PSU.EDU

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

Largest number of lists

27,793

LISTES.ULAVAL.CA

• 2-CPU 2.5GHz 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)

59,370

CAREERCENTERUPDATE@LISTSERV.UGA.EDU

• 2-CPU 2.6GHz Xeon (7872M)
• Linux 2.6.32-754.27.1.el6.x86_64
• Postfix