A list of words to reserve in domains, subdomains, web apps, and so on.

reserved-words.txt

about
account
accounts
ad
add
address
ads
added
admin
alpha
analytics
api
app
apps
archive
archived
archives
auth
auto
automatic
backup
backups
beta
bin
blob
blobs
blog
blogs
bookmark
bookmarks
bookmarked
browse
bug
bugs
build
builds
built
business
cache
calendar
callback
css
cd
cdn
cgi-bin
check
checkpoint
ci
classic
cloud
cname
code
company
config
configuration
configure
contact
contacts
control
convert
copied
copy
copyright
corp
crash
dashboard
data
db
delete
deleted
demo
demos
denied
deny
deploy
deployed
deploys
design
dev
developer
developers
doc
docs
document
documents
download
downloaded
downloads
dvd
edit
edited
edits
email
emails
enterprise
erase
erased
error
errors
etc
eula
event
events
example
examples
expire
expired
explore
export
exported
exports
faq
feed
feedback
fetch
file
files
finance
find
flag
flags
flagged
follow
followers
following
forbidden
free
ftp
ftps
gif
gifs
git
group
groups
guest
guide
guidelines
hash
help
hidden
hide
history
home
html
http
https
http2
id
ids
imap
img
imgs
images
import
imported
imports
inbox
info
information
internal
intro
invite
invites
ios
ipad
iphone
ipod
javascript
job
jobs
js
json
key
keys
legacy
lib
license
like
liked
likes
link
linked
links
list
lists
local
localhost
lock
locked
log
logged
logs
login
logout
mac
macos
macosx
magazine
mail
manage
manager
managers
market
marketing
marketplace
markets
me
media
message
messages
migrate
migrator
mobile
music
mx
new
news
newsletter
next
notes
oauth
offer
offers
old
open
opened
os
osx
page
pages
password
passwords
pay
payments
pdf
pdfs
personal
pgp
photo
photos
php
play
policies
policy
pop3
post
posts
pr
pricing
privacy
private
proc
prod
production
profile
profiles
project
projects
public
push
qa
queue
quota
random
read
recent
recover
recovery
refund
refunds
remove
removed
report
reported
reports
restore
restored
result
results
return
returns
revert
review
reviewed
reviews
robot
robots
root
rss
sales
save
saved
scan
scanning
script
scripts
search
searched
secret
secrets
secure
security
send
sent
serve
servers
services
settings
setup
sftp
share
shared
shares
sharing
shop
shopping
signin
signout
site
sites
smb
smtp
source
sources
spam
spec
specs
sql
src
ssh
staff
staging
star
starred
stars
static
statistics
stats
status
storage
store
subscribe
subscribed
subscribers
support
survey
svn
sys
system
team
teams
tech
technologies
technology
telnet
terms
test
tmp
token
tokens
tools
tour
trash
trending
trends
trial
trials
tv
txt
ui
unavailable
unread
unsupported
update
updated
upgrade
upload
uploaded
user
users
ux
vault
vendor
video
videos
view
views
wallet
warranty
watch
web
webmaster
webmasters
wiki
windows
wishlist
work
works
workplace
www
x
xx
xml
xss
xxx
you
zip

Based off previous answers and my research elsewhere, I have compiled this GitHub repository which has an updated JSON file, as well as JavaScript/Node.js based code example for implementation: https://github.com/forwardemail/reserved-email-addresses-list

Ref: https://webmasters.stackexchange.com/a/127447/84805

@niftylettuce awesomeness!

Here's the same thing, but formatted as a JS/JSON array for anyone who needs it

[
  "about",
  "account",
  "accounts",
  "ad",
  "add",
  "address",
  "ads",
  "added",
  "admin",
  "alpha",
  "analytics",
  "api",
  "app",
  "apps",
  "archive",
  "archived",
  "archives",
  "auth",
  "auto",
  "automatic",
  "backup",
  "backups",
  "beta",
  "bin",
  "blob",
  "blobs",
  "blog",
  "blogs",
  "bookmark",
  "bookmarks",
  "bookmarked",
  "browse",
  "bug",
  "bugs",
  "build",
  "builds",
  "built",
  "business",
  "cache",
  "calendar",
  "callback",
  "css",
  "cd",
  "cdn",
  "cgi-bin",
  "check",
  "checkpoint",
  "ci",
  "classic",
  "cloud",
  "cname",
  "code",
  "company",
  "config",
  "configuration",
  "configure",
  "contact",
  "contacts",
  "control",
  "convert",
  "copied",
  "copy",
  "copyright",
  "corp",
  "crash",
  "dashboard",
  "data",
  "db",
  "delete",
  "deleted",
  "demo",
  "demos",
  "denied",
  "deny",
  "deploy",
  "deployed",
  "deploys",
  "design",
  "dev",
  "developer",
  "developers",
  "doc",
  "docs",
  "document",
  "documents",
  "download",
  "downloaded",
  "downloads",
  "dvd",
  "edit",
  "edited",
  "edits",
  "email",
  "emails",
  "enterprise",
  "erase",
  "erased",
  "error",
  "errors",
  "etc",
  "eula",
  "event",
  "events",
  "example",
  "examples",
  "expire",
  "expired",
  "explore",
  "export",
  "exported",
  "exports",
  "faq",
  "feed",
  "feedback",
  "fetch",
  "file",
  "files",
  "finance",
  "find",
  "flag",
  "flags",
  "flagged",
  "follow",
  "followers",
  "following",
  "forbidden",
  "free",
  "ftp",
  "ftps",
  "gif",
  "gifs",
  "git",
  "group",
  "groups",
  "guest",
  "guide",
  "guidelines",
  "hash",
  "help",
  "hidden",
  "hide",
  "history",
  "home",
  "html",
  "http",
  "https",
  "http2",
  "id",
  "ids",
  "imap",
  "img",
  "imgs",
  "images",
  "import",
  "imported",
  "imports",
  "inbox",
  "info",
  "information",
  "internal",
  "intro",
  "invite",
  "invites",
  "ios",
  "ipad",
  "iphone",
  "ipod",
  "javascript",
  "job",
  "jobs",
  "js",
  "json",
  "key",
  "keys",
  "legacy",
  "lib",
  "license",
  "like",
  "liked",
  "likes",
  "link",
  "linked",
  "links",
  "list",
  "lists",
  "local",
  "localhost",
  "lock",
  "locked",
  "log",
  "logged",
  "logs",
  "login",
  "logout",
  "mac",
  "macos",
  "macosx",
  "magazine",
  "mail",
  "manage",
  "manager",
  "managers",
  "market",
  "marketing",
  "marketplace",
  "markets",
  "me",
  "media",
  "message",
  "messages",
  "migrate",
  "migrator",
  "mobile",
  "music",
  "mx",
  "new",
  "news",
  "newsletter",
  "next",
  "notes",
  "oauth",
  "offer",
  "offers",
  "old",
  "open",
  "opened",
  "os",
  "osx",
  "page",
  "pages",
  "password",
  "passwords",
  "pay",
  "payments",
  "pdf",
  "pdfs",
  "personal",
  "pgp",
  "photo",
  "photos",
  "php",
  "play",
  "policies",
  "policy",
  "pop3",
  "post",
  "posts",
  "pr",
  "pricing",
  "privacy",
  "private",
  "proc",
  "prod",
  "production",
  "profile",
  "profiles",
  "project",
  "projects",
  "public",
  "push",
  "qa",
  "queue",
  "quota",
  "random",
  "read",
  "recent",
  "recover",
  "recovery",
  "refund",
  "refunds",
  "remove",
  "removed",
  "report",
  "reported",
  "reports",
  "restore",
  "restored",
  "result",
  "results",
  "return",
  "returns",
  "revert",
  "review",
  "reviewed",
  "reviews",
  "robot",
  "robots",
  "root",
  "rss",
  "sales",
  "save",
  "saved",
  "scan",
  "scanning",
  "script",
  "scripts",
  "search",
  "searched",
  "secret",
  "secrets",
  "secure",
  "security",
  "send",
  "sent",
  "serve",
  "servers",
  "services",
  "settings",
  "setup",
  "sftp",
  "share",
  "shared",
  "shares",
  "sharing",
  "shop",
  "shopping",
  "signin",
  "signout",
  "site",
  "sites",
  "smb",
  "smtp",
  "source",
  "sources",
  "spam",
  "spec",
  "specs",
  "sql",
  "src",
  "ssh",
  "staff",
  "staging",
  "star",
  "starred",
  "stars",
  "static",
  "statistics",
  "stats",
  "status",
  "storage",
  "store",
  "subscribe",
  "subscribed",
  "subscribers",
  "support",
  "survey",
  "svn",
  "sys",
  "system",
  "team",
  "teams",
  "tech",
  "technologies",
  "technology",
  "telnet",
  "terms",
  "test",
  "tmp",
  "token",
  "tokens",
  "tools",
  "tour",
  "trash",
  "trending",
  "trends",
  "trial",
  "trials",
  "tv",
  "txt",
  "ui",
  "unavailable",
  "unread",
  "unsupported",
  "update",
  "updated",
  "upgrade",
  "upload",
  "uploaded",
  "user",
  "users",
  "ux",
  "vault",
  "vendor",
  "video",
  "videos",
  "view",
  "views",
  "wallet",
  "warranty",
  "watch",
  "web",
  "webmaster",
  "webmasters",
  "wiki",
  "windows",
  "wishlist",
  "work",
  "works",
  "workplace",
  "www",
  "x",
  "xx",
  "xml",
  "xss",
  "xxx",
  "you",
  "zip"
]