Difference between revisions of "Email attachments"

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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.
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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.
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Business customers with hosted Zimbra email do not have attachments blocked between accounts on their domain.
  
 
==Blocked file types==  
 
==Blocked file types==  
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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'''
  
Rejected files end in: '''scr, vbs, dll, exe, shs, bat, lnk, pif, chm, hta, com, cmd'''
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==Maximum Attachment Sizes==
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XMission allows email attachments with the following sizes:
  
== Zip to send==
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* Up to 10 MB for @xmission.com accounts via [https://webmail.xmission.com Webmail.XMission.com].
XMission customers needing to send a file type on this list can archive it as a ".zip" file first, then send that file as an attachment.
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* Up to 50 MB for @xmission.com email sent with mail applications.
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* Up to 50 MB for our hosted Zimbra email.
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* Up to 100 MB for our hosted Zimbra email to another one of our hosted Zimbra email accounts.
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'''Note: MIME encoding will change the size of the of the attachment significantly.'''
  
==Maximum attachment sizes==
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== Maximum Recipient Limit ==
XMission allows email attachments with the following sizes:
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* Up to 500 on [https://zimbra.xmission.com Zimbra] via web interface.
 
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* Up to 1000 using a mail application.
* Up to 10 MB for @xmission.com accounts via https://webmail.xmission.com
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To send in larger increments, please inquire with our sales department about our [[Mailing Lists]] product.
* Up to 25 MB for @xmission.com email sent with mail applications
 
* 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].
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[[Category: Email]]

Latest revision as of 11:46, 24 November 2022

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 Webmail.XMission.com.
  • Up to 50 MB for @xmission.com email sent with mail applications.
  • Up to 50 MB for our hosted Zimbra email.
  • Up to 100 MB for our hosted Zimbra email to another one of our hosted Zimbra email accounts.

Note: MIME encoding will change the size of the of the attachment significantly.

Maximum Recipient Limit

  • Up to 500 on Zimbra via web interface.
  • Up to 1000 using a mail application.

To send in larger increments, please inquire with our sales department about our Mailing Lists product.

Learn more

Learn how XMission filters for viruses and spam.