File Extensions That Are Not Allowed As Email Attachments

For security, our email hosting servers will reject inbound emails containing attachments with any of the following file extensions:

.ade
.adp
.adt
.app
.asd
.asp
.asx
.bas
.bat
.bin
.btm
.cab
.cbl
.cbt
.cgi
.chm
.cil
.cla
.clas
.class
.cmd
.cpe
.cpl
.crt
.csc
.csh
.css
.cvp
.dll
.dot
.drv
.exe
.fon
.fxp
.hlp
.hta
.htr
.inf
.ini
.inp
.ins
.isp
.jar
.js
.jse
.keyreg
.ksh
.lib
.lnk
.mda
.mdb
.mde
.mdt
.mdw
.mht
.mhtm
.mhtml
.msc
.msi
.msp
.mst
.mp3
.nte
.nws
.obj
.ocx
.ops
.ov
.pcd
.pgm
.pif
.pl
.pm
.prg
.scr
.sct
.shb
.shs
.slb
.smm
.swf
.swt
.sys
.vbe
.vbs
.vbx
.vir
.vmx
.vxd
.wmd
.wms
.wmz
.wsc
.wsf
.wsh
.xms
.com

We do apologize for the inconvenience. If you really need to share files with any of the above file extensions, consider either compressing them into a .zip file or using file sharing service like WeTransfer.

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