POP3 Connector and antispam

Microsoft Windows Small Business Server (SBS) versions contain a native built-in POP3 Connector that enables the server to fetch email messages from external POP3 servers. Implementation of this Microsoft native POP3 Connector differs from one SBS version to another.

ESET Mail Security does support Microsoft SBS POP3 Connector, provided it is configured correctly. Messages downloaded via the Microsoft POP3 Connector are scanned for the presence of spam. Antispam protection for these messages is possible because the POP3 Connector forwards email messages from a POP3 account to Microsoft Exchange Server via SMTP.

ESET Mail Security has been tested with popular mail services such as Gmail.com, Outlook.com, Yahoo.com, Yandex.com and gmx.de on the following SBS systems:

Microsoft Windows Small Business Server 2003 R2 SP2

Microsoft Windows Small Business Server 2008

Microsoft Windows Small Business Server 2011

note_icon_important IMPORTANT

If you are using a built-in Microsoft SBS POP3 Connector and have all email messages scanned for spam, press the F5 key to access Advanced setup, navigate to Server > Mail transport protection > Advanced settings and for Scan also messages received from authenticated or internal connections setting choose Scan by antivirus and antispam protection from the drop-down list. This ensures antispam protection for emails fetched from POP3 account(s).

You can also use a third party POP3 connector such as P3SS (instead of the built-in Microsoft SBS POP3 Connector). ESET Mail Security has been tested on the following systems (using P3SS connector fetching messages from Gmail.com, Outlook.com, Yahoo.com, Yandex.com and gmx.de):

Microsoft Windows Small Business Server 2003 R2 SP2

Microsoft Windows Server 2008 with Exchange Server 2007

Microsoft Windows Server 2008 R2 with Exchange Server 2010

Microsoft Windows Server 2012 R2 with Exchange Server 2013