Courier (email client)

Courier (or Courier Email)Developer(s)| RoseCitySoftware

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Final release|

3.5 (June 2004) [±]

Preview release|

3.6 Beta (Windows) / March 3, 2008

Operating system| Windows
Type| Email client
Website| rosecitysoftware.com/courier

Courier (also known as Courier Email) was an email client for Microsoft Windows. The software was originally released in 1996 as Calypso by Micro Computer Systems (MCS).[1]

Courier supported the POP3, IMAP and SMTP protocols, provided several features for HTML security and allowed to use multiple e-mail accounts from one mailbox. Version 3.0 introduced html support and improved message security in comparison to version 2.0, however some features were not yet supported for html messages.[2]

In 1998 the MCS introduced another Calypso branded product, Calypso Message Center, intended for tracking and distributing messages for corporate customers.[3]

The company abandoned further development of Calypso, which was acquired in 2003 by RoseCitySoftware.[4] This led to freeware release of version 3.3 and name change of the next shareware version 3.5 to Courier.[5]

An upgrade path was negotiated with PocoSystems to add Courier-type features to Pocomail and direct Courier users to migrate to PocoMail 4.8 as a replacement for Courier 3.5.[6] Free versions of the unfinished beta, requiring no registration, were available at the Yahoo Courier user group.[7]

As of June 2021 the software is not available for download from official sources.[8]

## References

1. ↑ "MCS Announces Calypso for Smooth Sailing Through the Internet E-Mail System" (Press release). Irving, Texas: Micro Computer Systems. October 23, 1996. Archived from the original on October 7, 1997. Retrieved September 30, 2017.
2. ↑ Heck, Mike (April 4, 1999). "Calypso provides solid access to many accounts". InfoWorld (IDG) 21 (14): 65, 67. ISSN 0199-6649.
3. ↑ Freed, Les (October 20, 1998). "Tame Your E-Mail, Calypso Message Center". PC Magazine (Ziff Davis) 17 (18): 228. ISSN 0888-8507.
4. ↑ RaZorbacK (April 5, 2003). "Calypso email, logiciel de courrier électronique" (in French). winaide.net. http://www.winaide.net/article52.html.
5. ↑ Palamountain, Michael (February 17, 2005). "Time to ditch Outlook? Eight alternatives tested". ZDNet. http://www.zdnet.com/article/time-to-ditch-outlook-eight-alternatives-tested/.
6. ↑ "PocoMail is the premiere Internet email alternative. Courier is Now PocoMail !!!". RoseCitySoftware. 2009. http://www.rosecitysoftware.com/pocomail/.
7. ↑ "Courier Email Forum". Yahoo! Groups. 2012. http://tech.groups.yahoo.com/group/courieremailforum/.
8. ↑ "Courier Email, the safe, secure email for business / home use by Rose City Software". 2009-04-01. https://www.rosecitysoftware.com/courier/. "Courier is no longer available for download from Rose City Software."

## External links

* Courier

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* e

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Shareware|

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Donationware|

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Discontinued|

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Related technologies|

* Extended SMTP
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Related topics|

* Email
* Unicode and email

* Category
* Comparison

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