Difference between revisions of "Email attachments"

From XMission Wiki
Jump to: navigation, search
(5 intermediate revisions by 2 users not shown)
Line 2: Line 2:
 
XMission rejects email attachments with commonly malicious file formats as a security measure to prevent potential viruses from impacting customers. Rejecting emails with executable files, for example file.exe, will protect you from possibly receiving malicious software containing a virus or malware.  
 
XMission rejects email attachments with commonly malicious file formats as a security measure to prevent potential viruses from impacting customers. Rejecting emails with executable files, for example file.exe, will protect you from possibly receiving malicious software containing a virus or malware.  
  
This blocking is applied to all inbound and outbound email. Automatically, a reject notice will be sent to any sender attempting to send to, or from, the XMission mail system.
+
This blocking is applied to all ''inbound and outbound'' email with attachments. A reject notice will automatically be sent to any sender attempting to send to, or from, the XMission mail system.
  
 +
Business customers with hosted Zimbra email do not have attachments blocked between accounts on their domain.
  
 
==Blocked file types==  
 
==Blocked file types==  
  
Rejected files end in: '''scr, vbs, dll, exe, shs, bat, lnk, pif, chm, hta, com, cmd'''
+
Rejected files end in: '''scr, vbs, dll, exe, shs, bat, lnk, pif, chm, hta, com, cmd, reg, js, cpl, jsp, vbe, sys, btm, pfr, vb'''
 
 
  
 
==Maximum attachment sizes==
 
==Maximum attachment sizes==
Line 17: Line 17:
 
* Up to 25 MB for @xmission.com email sent with mail applications
 
* Up to 25 MB for @xmission.com email sent with mail applications
 
* Up to 50 MB for our hosted Zimbra email  
 
* Up to 50 MB for our hosted Zimbra email  
 
  
 
==Learn more==
 
==Learn more==
  
 
Learn how XMission [http://transmission.xmission.com/2013/08/14/how-xmission-spam-and-virus-filtering-works filters for viruses and spam].
 
Learn how XMission [http://transmission.xmission.com/2013/08/14/how-xmission-spam-and-virus-filtering-works filters for viruses and spam].
 +
 +
[[Category: Email]]

Revision as of 16:16, 25 September 2018

Email security and attachments

XMission rejects email attachments with commonly malicious file formats as a security measure to prevent potential viruses from impacting customers. Rejecting emails with executable files, for example file.exe, will protect you from possibly receiving malicious software containing a virus or malware.

This blocking is applied to all inbound and outbound email with attachments. A reject notice will automatically be sent to any sender attempting to send to, or from, the XMission mail system.

Business customers with hosted Zimbra email do not have attachments blocked between accounts on their domain.

Blocked file types

Rejected files end in: scr, vbs, dll, exe, shs, bat, lnk, pif, chm, hta, com, cmd, reg, js, cpl, jsp, vbe, sys, btm, pfr, vb

Maximum attachment sizes

XMission allows email attachments with the following sizes:

  • Up to 10 MB for @xmission.com accounts via https://webmail.xmission.com
  • Up to 25 MB for @xmission.com email sent with mail applications
  • Up to 50 MB for our hosted Zimbra email

Learn more

Learn how XMission filters for viruses and spam.