Prohibited Receiver Local Part (REST only)
Role-based addresses are company or team email addresses (such as support@) rather than personal ones. They are often managed by multiple people, meaning recipients may not have explicitly opted in to receive your emails. Consequently, these addresses tend to have higher complaint and unsubscribe rates, and some can act as spam traps. Most of these role-based addresses are mentioned into the RFC 2142, or comes from widely used conventions.
To protect Transactional Email customers, the following role-based local parts are blocked before processing (dropped at synchronous response):
abuse@
admin@
billing@
compliance@
devnull@
dns@
ftp@
hostmaster@
inoc@
ispfeedback@
ispsupport@
list-request@
list@
maildaemon@
noc@
no-reply@
noreply@
null@
phish@
phishing@
postmaster@
privacy@
registrar@
root@
security@
spam@
support@
sysadmin@
tech@
undisclosed-recipients@
unsubscribe@
usenet@
uucp@
webmaster@
www@
Prohibited Attachment Extensions (REST only)
In case an attachment with an extension listed below is detected into the message, the JobRequest is rejected synchronously.
.ade
.adp
.app
.asp
.bas
.bat
.cer
.chm
.cmd
.com
.cpl
.crt
.csh
.der
.exe
.fxp
.gadget
.hlp
.hta
.inf
.ins
.isp
.its
.js
.jse
.ksh
.lib
.lnk
.mad
.maf
.mag
.mam
.maq
.mar
.mas
.mat
.mau
.mav
.maw
.mda
.mdb
.mde
.mdt
.mdw
.mdz
.msc
.msh
.msh1
.msh2
.mshxml
.msh1xml
.msh2xml
.msi
.msp
.mst
.ops
.pcd
.pif
.plg
.prf
.prg
.reg
.scf
.scr
.sct
.shb
.shs
.sys
.ps1
.ps1xml
.ps2
.ps2xml
.psc1
.psc2
.tmp
.url
.vb
.vbe
.vbs
.vps
.vsmacros
.vss
.vst
.vsw
.vxd
.was
.wsc
.wsf
.wsh
.xnk