Deliverability & Spam
Email Forwarding Deliverability Checklist Before Going Live
Routes before MX. Probe before the homepage. Dual MX is not a gate you pass.
email forwarding deliverability checklist
Read the guideMailerZ Blog
Domain email guides you can operate.
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Custom Domain + Gmail
Custom Domain Email for Gmail: MX, Alias, SMTP and Reply Flow Explained
MX, alias, SMTP, and Reply are four decisions. Fix the layer that failed.
custom domain gmail mx smtp alias
Read the guideCost & Workspace Alternatives
Do You Need Google Workspace Just for hello@yourdomain.com?
do i need google workspace custom email: one MX set, leftover hosts gone, Gmail or Outlook as the store.
do i need google workspace custom email
Read the guideSMTP Send-as
How to Send WordPress Email From Your Domain Without a Mailbox
WordPress needs authenticated SMTP, not IMAP. Name the From alias. Copy the dashboard pair. Free cannot send.
wordpress smtp custom domain
Read the guideAgency & Multi-domain
How to Track Who Owns Each Alias and Destination
Every name needs an owner, a destination, and a created date. Catch-all is not an owner.
email alias ownership tracking
Read the guideBusiness Role Addresses
How to Route One Public Address to Two Founders
One hop. Two stores. Write who replies. Leftover MX is not a second founder.
email alias multiple founders
Read the guideCustom Domain + Gmail
Why Emailing Yourself Is a Bad Test for Gmail Forwarding
Self-send can stay inside Google. The MX path never runs. Use a second provider and a unique subject.
gmail email yourself forwarding test
Read the guideEmail Forwarding Fundamentals
How to Test Email Forwarding Correctly Before a DNS Cutover
Green dashboard is not a test. Unique subject, other mailbox, leftover gone.
test email forwarding
Read the guideSecurity & Abuse
How to Disable a Compromised Alias Without Breaking the Domain
Kill the prefix. Leave MX. Hold unknowns. Rotate SMTP only if it could send.
disable compromised email alias
Read the guideDelivery Recovery & Observability
How to Debug 'Customer Says They Emailed Us' With Evidence
Evidence before DNS. You cannot recover mail that hit another host.
missing customer email troubleshooting
Read the guideBuyer Guides & Decision
Best Google Workspace Alternative for Small Teams That Only Need Email
Email-only means routes and a From identity around inboxes you already use. Buy Workspace when you need Calendar, Drive, or lockable hosted mailboxes.
best google workspace alternative email
Read the guideSecurity & Abuse
Catch-All Abuse: How Attackers Guess Addresses
Guessable local-parts are a directory. HOLD shows the guesses. FORWARD delivers them to Gmail.
catch all email abuse
Read the guideSecurity & Abuse
How to Prevent Email Forwarding Loops
One owner. Terminating dests. Hold unknowns. Delete dest bounce-back.
prevent email forwarding loop
Read the guideEmail Forwarding Fundamentals
Email Forwarding Architecture: Envelope, Header, SRS and Delivery Hops
Envelope can change. Header must not. Hops have numbers. Leftover MX ends hop one.
email forwarding architecture
Read the guideEmail Forwarding Fundamentals
How to Forward One Domain Address to Multiple People
Two destinations are a copy, not a shared mailbox. Name who answers. Probe both.
forward email alias to multiple recipients
Read the guidePrivacy & Masked Email
Custom Domain Alias Privacy: Correlation Risk Explained
Containment yes. Anonymity no. Unique prefixes still earn a disable button.
custom domain alias privacy
Read the guideCompetitor Comparisons
MailerZ vs Fastmail: Forwarding Layer vs Hosted Mailbox
Fastmail is a store. MailerZ is a hop. Keep Gmail and add MailerZ, or move the store to Fastmail. Not both MX.
mailerz vs fastmail
Read the guideCustom Domain + Gmail
How to Forward Your Domain Email to Gmail and Keep the Original Sender
The sender people see is a header. A From rewrite breaks authentication. Cut leftover MX. Probe from another mailbox.
forward domain email to gmail
Read the guideDelivery Recovery & Observability
What an SMTP Audit Trail Should Contain
smtp audit trail: one MX set, leftover hosts gone, Gmail or Outlook as the store.
smtp audit trail
Read the guideDelivery Recovery & Observability
How to Measure Forwarding Reliability Without Fake Uptime Claims
email forwarding reliability metrics: one MX set, leftover hosts gone, Gmail or Outlook as the store.
email forwarding reliability metrics
Read the guideAgency & Multi-domain
How to Audit 100 Domains for Leftover MX Records
audit multiple domains mx records: one MX set, leftover hosts gone, Gmail or Outlook as the store.
audit multiple domains mx records
Read the guideSMTP Send-as
SMTP Authentication Failed: Checklist for Custom Domain Send-As
AUTH failed is a client pair problem. Free has no send-as. Leftover MX is a different ticket.
smtp authentication failed
Read the guideBusiness Role Addresses
How to Set Up sales@ and Route It to Multiple People
Two destinations is a copy. One From. Name the human who answers.
sales email multiple recipients
Read the guideCost & Workspace Alternatives
Google Workspace Alternative for Custom Domain Email Without Extra Seats
Seats are people. Aliases are printed addresses. Keep Gmail, route hello@ and billing@, and do not buy a Workspace user to host a local-part.
google workspace alternative custom domain email
Read the guidePersonal Domains
Personal Email Aliases for Shopping, Travel and Subscriptions
Named aliases into Gmail. HOLD guesses. Disable the leaked string, not the domain.
personal email alias use cases
Read the guide
