DNS & MX
How to Check MX Records Before Switching Email Providers
Look up MX in public. Save the old set. Publish one new set. Delete leftovers. Prove inbound. Dual MX is not a backup.
check mx records
Read the guideMailerZ Blog
Domain email guides you can operate.
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Personal Domains
How to Create Joint Household Addresses for Bills and Services
Households need a stable bills@, not a shared Gmail login. Routes beat sticky notes.
family shared email alias
Read the guideSPF DKIM DMARC SRS ARC
DKIM Explained: What Forwarding Should Never Break
Envelope SRS is allowed. Rewriting Header From breaks DKIM and DMARC.
dkim email forwarding
Read the guideEmail Aliases
Email Alias vs Forwarding Address: Is There a Difference?
Print the alias. Verify the forwarding address. They are two fields on one route. One MX set, an external inbound test, then paid send-as if the name must leave.
email alias vs forwarding address
Read the guidePrivacy & Masked Email
How to Retire a Leaked Alias Without Losing Important Accounts
retire leaked email alias: one MX set, leftover hosts gone, Gmail or Outlook as the store.
retire leaked email alias
Read the guideDeveloper & Website SMTP
When Developers Should Use SMTP vs an Email API
Receipts can be SMTP. Lists should not. Exclusive MX still owns inbound replies.
smtp vs email api
Read the guidePrivacy & Masked Email
Email Masking vs Custom Domain Aliases: Which Protects You Better?
Masks are disposable. Your domain is durable. Pick the job, then the product.
email masking vs custom domain alias
Read the guideSecurity & Abuse
How to Avoid Sending Credentials to Support During Troubleshooting
email support credential safety: one MX set, leftover hosts gone, Gmail or Outlook as the store.
email support credential safety
Read the guideDeliverability & Spam
Why a Forwarding Service Cannot Promise 100% Inbox Placement
email forwarding inbox guarantee: one MX set, leftover hosts gone, Gmail or Outlook as the store.
email forwarding inbox guarantee
Read the guideCustom Domain + Gmail
Can Gmail Receive a Custom Domain Without Hosting a Mailbox?
Gmail can store the copy. It cannot be your domain’s MX. You still need a verified forward hop.
gmail custom domain without email hosting
Read the guideDelivery Recovery & Observability
14-Day vs 90-Day Message Recovery: How Much Retention Do You Need?
Fourteen days proves a cutover. Ninety days answers late tickets with an SMTP reason. Keep Gmail as the archive. Neither window is legal hold.
email forwarding retention
Read the guideEmail Aliases
Email Alias vs Mailbox: The Difference That Saves Money
An alias is a public local-part that routes. A mailbox is a stored seat. Keep Gmail or Outlook as the archive, map role addresses, and prove inbound first.
email alias vs mailbox
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 guidePrivacy & Masked Email
Email Aliases for Password Managers: Benefits and Trade-Offs
Alias, then vault, then the form. Disable a leak without burning founder@.
password manager email alias
Read the guideDeveloper & Website SMTP
How to Test SMTP From a VPS Without Sending Bulk Email
One 250. Close 25. Delete the script. A for-loop is bulk.
test smtp from vps
Read the guidePersonal Domain Email
Personal Domain Email With Gmail: A Long-Term Setup
Keep Gmail. Own the domain. Exclusive MX. Three aliases on Free. Pay when From or more names matter. Leftover aspmx is the long-term failure.
personal domain email gmail
Read the guideBuyer Guides & Decision
Custom Domain Email Buyer Guide for Agencies
One owner per client zone. Count aliases, not seats, for printed roles.
custom domain email for agencies
Read the guidePersonal Domains
Custom Domain Aliases vs Privacy Alias Services
Need a name you still own next year? Custom domain. Need a mask per website? A privacy service.
custom domain alias vs privacy alias
Read the guideCost & Workspace Alternatives
Email Infrastructure Cost Calculator for Small Businesses
Pay for stores people open. Do not buy a seat for every printed noun.
business email cost calculator
Read the guideDelivery Recovery & Observability
How to Recover a Forwarded Email After a Destination Failure
History first. Store window. Dual MX is not recovery.
recover failed forwarded email
Read the guideBusiness Role Addresses
How to Set Up security@ for Vulnerability Reports
Staff the destination. Probe the hop. Then print Contact. Leftover MX steals reports.
security email alias
Read the guideDNS Provider Guides
TXT Record Quoting and Hostname Mistakes That Break Verification
Match dashboard bytes on the asked name. Theater NS verifies the wrong zone.
txt record verification mistakes
Read the guideDNS Provider Guides
How to Configure MailerZ in cPanel DNS Zone Editor
mailerz cpanel dns: one MX set, leftover hosts gone, Gmail or Outlook as the store.
mailerz cpanel dns
Read the guideBuyer Guides & Decision
Best Email Forwarding Service With Delivery Logs and Recovery
History is the destination SMTP response. Recovery is a short window. Neither is an archive or an inbox-placement promise.
email forwarding service delivery logs
Read the guideSMTP Send-as
How to Configure Gmail Send-As With a Custom SMTP Server
Gmail stays the inbox. Paid SMTP sends the domain From. Copy the dashboard pair. Do not invent ports. Free has no send-as.
gmail send as smtp server
Read the guide
