From a security perspective, the Mail Server will reject inbound mails containing attachments with any of the following file extensions.
.386 | .fon | .ocx |
.ade | .fxp | .ops |
.adp | .hlp | .ov |
.adt | .hta | .pcd |
.app | .htr | .pgm |
.asd | .inf | .pif |
.asp | .ini | .pl |
.asx | .inp | .pm |
.bas | .ins | .prg |
.bat | .isp | .scr |
.bin | .jar | .sct |
.btm | .jse? | .shsb? |
.cab | .keyreg | .shs? |
.cbl | .ksh | .slb |
.cbt | .lib | .smm |
.cgi | .ink | .swf |
.com | .mda | .swt |
.cil | .mdb | .sys |
.cla(ss)? | .mde | .vbe |
.cmd | .mdt | .vbs |
.cpe | .mdw | .vbx |
.cpl | .mhtm | .vir |
.crt | .mhtml | .vmx |
.csc | .msc | .vxd |
.csh | .msi | .wmd |
.css | .msp | .wms |
.cvp | .mst | .wmz |
.dll | .mp3 | .wsc |
.dot | .nte | .wsf |
.drv | .nws | .wsh |
.exe | .obj | .xms |
Kindly note: ‘?’ means any single character