easyMail’s EDS does standard filename and filetype content analysis to protect you from insecure attachments. Below are listed default blocked filenames and filetypes.
Blocked file extensions
.ade
.adp
.ani
.appcontent-ms
.appref-ms
.b64
.bat
.bhx
.cab
.cdxml
.ceo
.cer
.chm
.cmd
.cnf
.cnt
.com
.cpl
.cur
.der
.diagcab
.dll
.exe
.fdf
.grp
.hpj
.hqx
.hta
.img
.ins
.iqy
.iso
.isp
.its
.jar
.jnlp
.job
.jse?
.lha
.lib
.lnk
.lzh
.mad
.maf
.mag
.mam
.maq
.mar
.mas
.mat
.mau
.mav
.maw
.mcf
.mda
.mde
.mdz
.mhtml
.mim
.mobileconfig
.msc
.msi
.msp
.mst
.msu
.oft
.pif
.pl
.prf
.printerexport
.ps1
.ps1xml
.ps2
.ps2xml
.pscd1
.pscd2
.psdm1
.pssc
.pst
.py
.pyc
.pyo
.pyw
.pyz
.pyzw
.reg
.scf
.scr
.sct
.settingcontent-ms
.shb
.shs
.sys
.theme
.udl
.url
.uue
.vbe
.vbp
.vbs
.vhd
.vmdk
.vsmacros
.vss
.vst
.vsw
.vxd
.webpnp
.website
.ws
.wsb
.wsc
.wsf
.wsh
.xbap
.xll
.xnk
.xxe
Blocked filetypes
self-extract
executable
ELF
Registry
Installer