- March 14th, 2017 32
The following “dangerous” file extensions are blocked and are not allowed to be sent or received through our email services. These extensions are also blocked within zip, rar and other types of compressed archives. We disallow these extensions as they are commonly used in viruses, malware, rootkits, ransomware and other security issues. Attempting to send an email containing an attachment with a blocked extension will result in the email being rejected and sent back to you with a notice. If you are sent an email containing an attachment with a blocked extension, the email will also be rejected.
AD ADE ADP APP APPLICATION ASD ASF ASP BAS BAT BIN CAB CEO CER CHM CHT CMD COM CPL CRT CSH DOCM DOTM
DLL EXE FXP GADGET GZ HLP HTA HTO INF INS ISP ITS JAR JS JSC JSE KSH LIB LNK NSH MAD MAF MAG
MAM MAQ MAR MAS MAT MAU MAV MAW MDA MDB MDE MDT MDW MDZ MSC MSI MSP MST NWS OCX OPS PCD PI
PIF PPTM POTM PPAM PPSM PRF PRG PST PS1 PS1XML PS2 PS2XML PSC1 PSC2 REG SCF SCR SCT SEA SHB SHM SHS SLDM
SYS TAZ TGZ TMP TZ UUE VB VBE VBS VBX VSD VSMACROS VSS VST VSW VXD WS WSC WSF WSH XLSM XLTM XLAM