KnexMail Reserved Handles

Purpose: Protect official communication channels, prevent abuse, and maintain brand integrity.

Last Updated: 2026-02-04

Official KnexMail Communication Handles

System & Automated Messages

@admin
@noreply
@no-reply
@donotreply
@do-not-reply
@system
@mailer
@postmaster
@mail
@automated
@notifications
@notify
@alerts
@bot
@daemon

Support & Customer Service

@support
@help
@helpdesk
@service
@customerservice
@customer-service
@customercare
@care
@contact
@info
@feedback
@suggestions
@complaints

Security & Trust

@security
@abuse
@trust
@safety
@fraud
@antifraud
@compliance
@legal
@privacy
@dmca
@copyright
@report
@phishing
@spam
@antispam

Marketing & Communications

@marketing
@news
@newsletter
@updates
@announcements
@promo
@promotions
@offers
@deals
@sales
@campaigns

Billing & Finance

@billing
@payments
@invoice
@invoices
@receipts
@finance
@accounting
@refunds
@subscriptions

Technical & Development

@webmaster
@hostmaster
@devops
@dev
@developer
@developers
@engineering
@api
@tech
@technical
@status
@monitoring

Corporate & Executive

@ceo
@cto
@cfo
@coo
@cmo
@founder
@founders
@executive
@board
@investors
@press
@media
@pr

Community & Social

@community
@social
@events
@moderator
@moderators
@ambassador
@ambassadors
@partners
@partnership

Brand Protection

KnexMail Variations

@knexmail
@knex-mail
@knex
@knexcoin
@knex-coin
@knexpay
@knex-pay
@knexwallet
@knex-wallet
@official
@verified
@team
@staff

Common Typos/Misspellings

@knexmial
@knexemail
@knexxmail
@knexmaail
@knexmal
@knexmeil
@kenxmail
@knexmai

Generic/High-Value Handles

Common Names

@root
@user
@test
@demo
@example
@sample
@guest
@anonymous
@anon
@default
@null
@undefined
@unknown

Single Letters & Numbers

@a through @z
@0 through @9

Common Words

@email
@inbox
@mail
@message
@messages
@account
@profile
@username
@name

Profanity & Offensive Content

Explicit Language (English)

@fuck
@shit
@ass
@asshole
@bitch
@bastard
@damn
@hell
@cunt
@dick
@cock
@pussy
@whore
@slut
@piss
@crap
@douche
@fag
@faggot
@nigger
@nigga
@kike
@chink
@spic
@retard
@retarded
@moron
@idiot

Variations & Leetspeak

@fuk
@fck
@f*ck
@fvck
@phuck
@sh1t
@a55
@a$$
@b1tch
@d1ck
@c0ck
@pu$$y
@wh0re
@5lut
@n1gger
@n1gga
@f4g

Sexual Content

@sex
@porn
@porno
@xxx
@nude
@nudes
@naked
@anal
@oral
@blowjob
@handjob
@masturbate
@cum
@jizz
@orgasm
@horny
@erotic
@fetish
@bdsm
@kinky

Hate Speech & Discrimination

@nazi
@hitler
@racist
@racism
@sexist
@sexism
@homophobe
@homophobic
@transphobe
@hate
@kkk
@whitesupremacy
@supremacist

Violent Content

@kill
@murder
@rape
@torture
@violence
@death
@suicide
@terrorist
@terror
@bomb
@shooter
@massacre

Scam & Fraud Prevention

Impersonation

@google
@microsoft
@apple
@amazon
@facebook
@meta
@twitter
@instagram
@paypal
@venmo
@cashapp
@coinbase
@binance
@kraken
@blockchain
@bitcoin
@ethereum
@crypto
@irs
@fbi
@government
@federal
@treasury
@bank

Scam Keywords

@winner
@prizes
@lottery
@jackpot
@claim
@refund
@verify
@verification
@confirm
@suspend
@suspended
@locked
@unlock
@restore
@recovery
@reset
@urgent
@action-required
@immediate
@expires
@limited-time

Financial Scams

@free-money
@freemoney
@cash-prize
@inheritance
@millionaire
@investment
@trader
@trading
@forex
@profit
@guaranteed
@roi
@double-your-money
@ponzi
@pyramid
@mlm

Illegal Activity

Drugs

@drugs
@cocaine
@heroin
@meth
@methamphetamine
@weed
@marijuana
@cannabis
@pills
@pharmacy
@prescription
@opioid
@fentanyl
@dealer
@dealing

Weapons

@guns
@firearms
@weapons
@ammunition
@ammo
@explosives

Illegal Services

@hacker
@hacking
@cracker
@exploit
@malware
@virus
@ransomware
@darknet
@darkweb
@hitman
@assassin
@counterfeit
@fake-id

Child Safety

CSAM Prevention

@child
@children
@kid
@kids
@minor
@minors
@teen
@teens
@teenager
@underage
@loli
@lolita
@pedo
@pedophile
@cp

(Combined with any sexual terms - auto-flag for investigation)

Religious & Political Sensitivity

Religious Terms (Reserved to prevent conflict)

@god
@jesus
@christ
@allah
@muhammad
@prophet
@buddha
@religion

Political Terms (Reserved to prevent impersonation)

@president
@congress
@senate
@democrat
@republican
@liberal
@conservative
@politics
@government
@election
@vote
@voting

Special Characters & Edge Cases

Confusables (Unicode lookalikes)

Handles that use Unicode characters that look like Latin letters
Homograph attacks (e.g., Cyrillic 'а' vs Latin 'a')
Right-to-left override characters
Zero-width characters

Reserved Patterns

Handles starting with numbers only
Handles containing only special characters
Handles with consecutive dots or hyphens
Handles that are URL-like (e.g., @www)
Handles mimicking email addresses (e.g., @user@domain)

Implementation Notes

Database Storage

// Store as Set in Lambda or DynamoDB table
const RESERVED_HANDLES = new Set([
  'admin', 'noreply', 'support', // ... etc
]);

// Check during signup
if (RESERVED_HANDLES.has(handle.toLowerCase())) {
  return error('Handle is reserved for system use');
}

Auto-Population Script

// Populate DynamoDB with reserved handles
async function populateReservedHandles() {
  const reserved = [...RESERVED_HANDLES];

  for (const handle of reserved) {
    await docClient.send(new PutCommand({
      TableName: TABLE_NAME,
      Item: {
        handle: `@${handle}`,
        reserved: true,
        reservedReason: 'System/Brand Protection',
        createdAt: new Date().toISOString()
      }
    }));
  }
}

Case-Insensitive Matching

All handle reservations should be case-insensitive:

@Admin = @admin = @ADMIN

Wildcard Patterns

Consider reserving patterns like:

@knex* (anything starting with knex)
@*admin* (anything containing admin)
@support* (anything starting with support)

Maintenance

Regular Review Schedule

Monthly: Review new slang/profanity trends
Quarterly: Add newly identified scam patterns
Yearly: Audit entire list for relevance

Reporting Mechanism

Users can report inappropriate handles that slipped through:

abuse@knexmail.com
In-app reporting feature
Community moderation

Appeals Process

For legitimate users who want a handle that was reserved:

Submit appeal to legal@knexmail.com
Provide business justification
Verify identity/company
Manual approval by legal team

Total Reserved Count

Estimated Total: ~500-600 handles

Categories:

Official/System: ~80
Brand Protection: ~30
Profanity/Offensive: ~150
Scam Prevention: ~100
Illegal Activity: ~50
Child Safety: ~20
High-Value Generic: ~50
Special Cases: ~20+

Security Best Practices

Additional Protection Layers

Rate Limiting: Prevent rapid handle testing
IP Blocking: Block known VPN/proxy farms during signup
Email Verification: Require verified email to activate handle
Machine Learning: Detect new offensive patterns automatically
Human Review: Flag suspicious handles for manual review

False Positive Handling

Some legitimate uses might be blocked (e.g., "@dick" for "Richard"):

Allow appeals with ID verification
Whitelist specific legitimate cases
Provide alternative suggestions during signup

Last Updated: 2026-02-04 Maintained By: KnexMail Security Team Version: 1.0.0

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