[KB2138] Email clients compatible with Windows ESET products


Many email clients are compatible with various ESET products for Windows. If an email client is compatible with ESET products, regardless of the protocol used, all email received is scanned for threats and spam (in programs with the antispam feature). Additionally, the ESET Endpoint Security toolbar and ESET Antispam toolbar will display in the email client.

To determine which ESET product is best suited to your needs, locate your current email client in the Email Client column and view the compatible ESET software in the adjacent rows (indicated by green check marks ).

EMAIL CLIENT ESET File/Mail Security 6.x

ESET Endpoint Security / ESET Endpoint Antivirus 5.x

ESET Endpoint Security / ESET Endpoint Antivirus
6.x, 7.x

ESET Windows home products
9.x, 10.x, 11.x, 12.x, 13.x

Microsoft Outlook
2000 – 2007

Microsoft Outlook


Microsoft Outlook

Microsoft Outlook 




Microsoft Outlook 
Microsoft Outlook Express
Windows Mail
Windows Live Mail
v12, v14 (2009)
Windows Live Mail
v15 (2011 **)
Windows Live Mail
v16 (2012 **)


Windows 10 Mail app *        
Mozilla Thunderbird 2.0/3.0/3.1/5.0


Mozilla Thunderbird 6.0
(and later ***)

* While using Windows 10 Mail app, ESET products will scan only POP3 and IMAP email for the presence of malicious code. Email may not be scanned for spam, however.

** With Windows Live Mail 2011/2012, although no ESET icon appears in the taskbar, the plug-in is otherwise fully functional.

*** ESET products will scan POP3/POP3S and IMAP/IMAPS email for the presence of malicious code while using Mozilla Thunderbird 6+ or other email clients not listed above. Email may not be scanned for spam, however.

BETA email clients:

In some cases, beta email clients are not supported.


If you are using an email client that is supported by ESET Smart Security Premium, ESET Smart Security or ESET Internet Security but you cannot see the Antispam toolbar in your email client, visit the following ESET Knowledgebase article for instructions on reintegrating the toolbar: