Connecting Microsoft Exchange Server to a POP3
Account
Downloading mail from a POP account into Exchange
Server in general is not a supported configuration (though you
wouldn't know it from the proliferation of tools to
accomplish this). However, Microsoft does provide an Exchange Connector for POP3
Mailboxes for Small Business Server, having licensed
Internet Mailbridge from Acotec. It's still not a supported
configuration for full Exchange Server.
I'd suggest that you read about both sides of this issue. If you decide to try this
route, there are plenty of tools to choose from. Features common to
all POP3 collectors include the ability to POP mail from multiple
servers and from multiple mailboxes. You'll also be able to control
how often it checks for new mail in the POP3 accounts and limit it
to downloading new mail during specific hours, such as only during
business hours. All of the commercial POP3 connectors should be able
to deliver mail to any SMTP address, including mail-enabled Public
Folders.
Many of these tools
support these forms of POP3 collection:
One-to-one, which collects mail from a single POP3 mailbox
and sends it
to a specific SMTP address
Many-to-one, which collects mail from multiple POP3
mailboxes and sends it to single SMTP address
One-to-many, which collects mail from single 'catch-all'
POP3 mailbox and sends it to multiple SMTP addresses
Note that the one-to-many collection method fails when messages are BCC'd
to users.
Anti-spam, disclaimers (with variables), archiving Internet mail, Internet mail usage reports. Includes a POP downloader and personalized server-based autoreplies that can include attachments and tracking numbers. Can archive to an ODBC database. Version 14 includes Overall improved anti-spam technology, an additional anti-spam engine called SpamRazer along with improved performance and a real-time dashboard.
MAPILab POP3 Connector allows companies download mail from external POP3 servers and deliver it to Microsoft Exchange Server 2007. Supports SSL. Use with personal or catchall mailboxes. For Exchange 2007 only. Version 1.0.2
Native POP3 Connector installs as a connector to Exchange and is configured using Exchange System Manager. It supports a large number of mailboxes (each one may be catchall accounts), multi-threading processing, flexible scheduling of POP3-mailbox querying, and integrates with the Active Directory. Supports Exchange2000/2003 and SBS2000/2003
Pro version also available which includes all features found in the standard version plus a self-updating RAV virus scanner, antispam filtering, and rule-based message distribution. Available in English and German. Version 3.50
Eclarsys PopGrabber is a replacement for the POP3 connector included with the Small Business Server and also works with any standard SMTP server or Exchange server. Runs as a Windows Service. Free version available for up to 3 mailboxes; Standard version for larger sites. Requires Net Framework 1.1.
EFS is a FREE POP3 gateway for any SMTP server such as Microsoft Exchange, Lotus Notes or SLMail. It pulls mail from a Pop3 mailbox at your ISP and distributes the messages to users on a local SMTP mail server. EFS requires you to have a registered Internet domain name (to accept and forward mail for), use as a replacement for the somewhat limited Microsoft SBS Pop3 Connector.
Exchange Connector allows you to integrate your existing POP3 mailboxes with Microsoft Exchange Server 2000 or 2003 by downloading mail from POP3 mailboxes and delivering the messages to your Exchange Server accounts. Exchange connector runs in the background as a Windows Service and can be configured to download only during specified hours, such as between 9AM-5PM Monday-Friday and includes a "Download Mail Now" button for immediate downloads. It provides support for APOP (enhanced POP3 security), archiving, and SQL Server logging. Version 3.3.3
An email gateway (connector) that retrieves messages from Internet POP3 email accounts (IMAP also supported) and delivers them to Exchange Server mailboxes. Supports single and multiple user POP3 accounts, unlimited POP3 accounts, unlimited ISPs and SMTP authentication when sending to Internet. Version 5
Fetchmail can be used to collect mail from POP3 mailboxes and deliver it to Exchange server. It's one of the applications found Unixmail for Windows, a package of unix mail tools ported to MS Windows (Win32), and bundled together with an installer. In addition to fetchmail, the bundle includes mutt, aspell/pspell, sSMTP, and GnuPG.
POP3 email connector. Works with any SMTP server including Exchange and Notes. Supports Secure POP3 (SSL) or Secure SMTP (SSL/TLS) with authentication.
IGetMail version 2.4 acts as a POP3 gateway to automatically download your incoming POP3 mail from multiple remote servers to a single, local Microsoft Exchange Server. Downloads and copies e-mail from multiple individual e-mail accounts and multiple domains, using a single connection to fetch all your e-mail.
Free from Microsoft for use only with Small Business Server 4.5. (SBS2003 includes a POP connector.) Delivers only to mailboxes, not mail-enabled Public folders. If you use SBS2003's POP3 connector, see Many unexpected outbound e-mail messages appear in the SMTP queue in Small Business Server 2003 and install the patch before enabling the connector.
POP collector to download POP3 mails and forward to Exchange. Automatically installs as service on Windows 2003. Supports SMTP server for each POP account and SMTP AUTH. Improved Service support. Logging is configurable. Freeware.
Supports mail forwarding without attachments (i.e. for SMS messages), dial up (RAS) connections and checks all inbound mails with a standard virus checker i.e. Norton Antivirus. Works with every version of Exchange Server including Small Business Server, 2000 and 2003, dial-up, dial-up routers, ADSL and leased-line connections to the Internet. Supports any SMTP server -- Exchange, Lotus Notes and Novell GroupWise and proxy servers that support the SOCKS protocol such as WinGate or MS Proxy.
Supports every version of Exchange server including Small Business Server and Exchange 2000/2003, any ISP's POP3 or IMAP server, even the older ones, that do not support the Received for: header line. Works with dial-up, dial-up routers, ADSL and leased-line connections to the Internet. Use with any SMTP server like Exchange, Lotus Notes and Novell GroupWise or proxy that support the SOCKS protocol like WinGate or ISA Server. Supports all message encoding formats, including MIME and UUENCODE messages, and character sets.
A command line utility to add POP3 mail collection to most SMTP mail servers. Easy to configure with multiple POP accounts to collect from, once started the POPWeasel collects mail from each account, reads the mail headers and routes the mail to your mail server for distribution to your users.
POP3 connector including spam filtering with SpamAssassin, interface for virus scanners, content-checking, outgoing mail handling and more. Works with Exchange 5.5, Exchange 2000, and Exchange 2003. Version 2.30
SmartPOP2Exchange works in the background and downloads all messages from various POP3 accounts and forwards them to your SMTP/Exchange server. The configuration tool allows you to adjust common options, like download interval, timeout, log file etc. and to add, delete or configure your SMTP/Exchange and POP3 accounts. An included spam filter allows to tag or to delete mails that have been identified as spam by SpamAssassin. SmartPOP2Exchange also supports rules which allow you to define additional actions for certain messages. Version 4.3
Spinmail is a Microsoft Mail / Exchange to Internet UUCP or TCP/IP Gateway. It also supports any POP3 compliant software such as Outlook, Eudora, Pegasus etc. Spinmail was designed to provide companies using Microsoft Email/ POP3 with an easy and effective way to access the Internet. A great deal of effort has gone into making Spinmail one of the easiest and most intuitive ways of getting company personnel a 'presence' on the net. In addition attention has been made to making the operation , support and maintenance of Spinmail a low manpower drain. Shareware. Version 2.
Intelligent Message Filter (IMF)
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