Workbench 1.0
Workbench 2.04

These GUIs don’t have this feature.

DeskTop 1.1
GS/OS 5.0.4
GS/OS 6.0.1

These GUIs don’t have this feature.

BeOS R5.0.1 PE

Mail in BeOS R5.0.1 PE (BeMail)

CDE 1.5 in Solaris 9

Mail in CDE 1.5 in Solaris 9

GEOS 2 for C64
GEOS 2.1 for Apple II
GeoWorks Ensemble 2.0
NewDeal Office 3 Eval.
BreadBox Ensemble Lite

These GUIs don’t have this feature.

GNOME 2.2.0 in RedHat 9

Mail in GNOME 2.2.0 in RedHat 9 (Ximian Evolution 1.2.2)

IRIX 5.3

Mail in IRIX 5.3 (MediaMail) with thanks to Ian Young. The screenshot is a reproduction.

Lisa OS 1.0
Lisa OS 3.1

These GUIs don’t have this feature.

System 1.1
System 3.0
System 4.2
System 7.0
System 7.5.3
Mac OS 8.0

These GUIs don’t have this feature.

Mac OS 9.0

Mail in Mac OS 9.0 (Outlook Express 4.5)

Mac OS X DP

Mail in Mac OS X DP (MailViewer)

Mac OS X DP 2

Mail in Mac OS X DP 2 (MailViewer) with thanks to Steven Troughton-Smith

Mac OS X DP 3

Mail in Mac OS X DP 3 (Mail) The Mailbox drawer (introduced in this edition of Mac OS X) could only be attached to the left border of the window. In succeeding releases, the draw would slide out from left or right border depending on the position of the main Mail window.

Mac OS X DP 4

Mail in Mac OS X DP 4 (Mail)

Mac OS X Public Beta

Mail in Mac OS X Public Beta (Mail) The program has been configured with ‘test’ account on ’test’ server.

Mac OS 10.0.4

Mail in Mac OS 10.0.4 (Mail)

Mac OS 10.1

Mail in Mac OS 10.1 (Mail)

Mac OS X Jaguar

Mail in Mac OS X Jaguar (Mail)

Mac OS X Panther

Mail in Mac OS X Panther (Mail) with thanks to Jonathan Westin

OPENSTEP 4.2

Mail in OPENSTEP 4.2 (Mail)

Rhapsody DR2

Mail in Rhapsody DR2 (MailViewer) The second illustration shows the contents of the introductory email.

MS OS/2 1.30.1
OS/2 2.1

These GUIs don’t have this feature.

OS/2 Warp 3
OS/2 Warp 4

This feature is not yet documented on this site.

QNX 6.2.1 NC

This GUI doesn’t have this feature.

ArthurOS 1.2
RISC OS 3.11
RISC OS 3.7

These GUIs don’t have this feature.

Sibo/Psion Series 3a
Sibo/Psion Siena

These GUIs don’t have this feature.

EPOC R5/Psion Revo

Mail in EPOC R5/Psion Revo (Email) with thanks to Daniel Beardsmore Please note that this application also allows to send text messages (SMSes).

EPOC R5/Psion Series 7

Mail in EPOC R5/Psion Series 7 (Email) Please note that this application also allows to send text messages (SMSes).

Windows 1.01
Windows 2.03
Windows 3.0
Windows 3.1

These GUIs don’t have this feature.

WfW 3.11
Windows NT 3.1 Workstation

Mail in WfW 3.11 (Mail)

Windows NT 3.51 Workstation

Mail in Windows NT 3.51 Workstation

Windows 95

Mail in Windows 95 (Microsoft Exchange)

Windows 95B

Mail in Windows 95B (Internet Mail)

Windows NT 4.0 Workstation
Windows NT 4.0 Server

Mail in Windows NT 4.0 Workstation

Windows 98

Mail in Windows 98 (Outlook Express 4)

Windows 98 SE

Mail in Windows 98 SE (Outlook Express 5)

Windows 2000 Pro

Mail in Windows 2000 Pro (Outlook Express 6)

Windows 2000 Advanced Server

Mail in Windows 2000 Advanced Server (Outlook Express 6)

Windows Me

Mail in Windows Me (Outlook Express 6)

Whistler 2257

Mail in Whistler 2257 (Outlook Express 5.60) Whistler’s Internet Explorer and Outlook Express both had an unique version number – 5.60

Windows XP Pro

Mail in Windows XP Pro (Outlook Express 6)

Windows Server 2003 Web

Mail in Windows Server 2003 Web (Outlook Express 6)

Longhorn 4015

Mail in Longhorn 4015 (Outlook Express 6.05)