Migrations
Email Migration for Agencies: Repeatable Multi-Domain Runbook
Same gates every domain. HOLD default. No dual MX. Handoff packet is part of done.
agency email migration runbook
Read the guideMailerZ Blog
Domain email guides you can operate.
Page 4 of 13. Search from the catalog when you need a title, keyword, or topic filter.
25 of 315 articles25 articles per page. New posts join this catalog as they publish.
Delivery 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 guidePersonal Domain Email
Should You Use firstname@lastname.com as Your Main Email?
Own the surname domain, hop into Gmail, exclusive MX. Bad main if the domain is shared, a joke, or leftover registrar mail.
firstname@lastname.com email
Read the guideCompetitor Comparisons
MailerZ vs ImprovMX: Which Custom Domain Forwarder Fits You?
Same class: inbound MX plus optional SMTP. Split on rules versus named aliases, volume versus stored hops. One MX owner.
mailerz vs improvmx
Read the guideSecurity & Abuse
Email Routing and GDPR: What Data Is Processed?
Name the classes and the store window. Do not invent badges.
email forwarding gdpr
Read the guideAgency & Multi-domain
Email Routing Capacity Planning: Domains, Aliases and Send Volume
Count first. Quote the card. Agency does not merge leftover MX.
email routing capacity planning
Read the guideSPF DKIM DMARC SRS ARC
Header From vs Envelope From: The Email Detail That Changes Everything
Humans read Header From. SMTP uses Envelope From. Forwarding may rewrite the envelope. Do not rewrite the visible sender.
header from vs envelope from
Read the guideEmail Forwarding Fundamentals
How Domain Email Forwarding Works From MX Lookup to Final Inbox
Five hops. Name the one that died. Public MX is hop one.
how email forwarding works
Read the guideCustom Domain + Gmail
Why Gmail Shows 'via' on Forwarded Mail and How to Avoid It
via is Gmail’s UI, not an MX record. Do not rewrite From to hide it. Prove the hop. Do not promise it will never appear.
gmail forwarded email via
Read the guideBusiness Role Addresses
How to Set Up hello@ for a Startup Using Gmail
hello email startup gmail: one MX set, leftover hosts gone, Gmail or Outlook as the store.
hello email startup gmail
Read the guideEmail Forwarding Fundamentals
Email Forwarding to Gmail vs Outlook: Practical Differences
Keep the inbox you already search. Publish one MX set, prove inbound from another mailbox, then attach Gmail Send mail as or Outlook SMTP.
email forwarding gmail vs outlook
Read the guideDeveloper & Website SMTP
Email From Address vs Return-Path for Web Applications
Do not set From to the user and Return-Path to hope. Site From, visitor Reply-To, envelope as instructed.
from address vs return path
Read the guideDeliverability & Spam
How to Reduce False Positives in Forwarded Email
250 then junk is a folder ticket. Empty history is leftover MX. Do not FORWARD to hide misses.
forwarded email false positives
Read the guideSMTP Send-as
STARTTLS vs TLS for SMTP: What Settings Should You Use?
STARTTLS upgrades. Implicit TLS starts encrypted. Use the pair MailerZ shows. Mixing them fails before a message exists.
smtp starttls vs tls
Read the guideCost & Workspace Alternatives
How to Replace a Forwarding + SMTP Patchwork With One Service
List every MX and SMTP vendor. Publish one delivery layer around the inbox you already use. Prove inbound before you retire the old relay.
email forwarding smtp one service
Read the guideTroubleshooting & SMTP Codes
Some Emails Forward and Others Do Not: How to Find the Cause
Partial arrival is a split path. Mixed MX and missing names beat “the server is down.”
some emails not forwarding
Read the guideEmail Aliases
Role-Based Email Aliases: sales@, support@, billing@ and More
Print the role. Own the destination. Prove inbound. Change the person later without reprinting the address.
role based email aliases
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 guideSPF DKIM DMARC SRS ARC
DMARC and Forwarding: Why Alignment Matters
Alignment is Header From versus the authenticating domain. Rewrite From and both paths die. MailerZ uses envelope SRS only.
dmarc email forwarding
Read the guideTroubleshooting & SMTP Codes
Why a Self-Send Test Can Lie About Your Email Setup
self send email test: one MX set, leftover hosts gone, Gmail or Outlook as the store.
self send email test
Read the guideCompetitor Comparisons
MailerZ vs Google Workspace: Forwarding + SMTP or Full Office Suite?
Workspace is a hosted suite. MailerZ is a delivery layer around the inbox you already use. Pick one store, publish one MX set, and prove inbound first.
mailerz vs google workspace
Read the guideDNS and MX
How Long Do MX Record Changes Take to Propagate?
Wait the old TTL. Leftover hosts are not propagation. Two resolvers, then a third mailbox.
mx record propagation
Read the guideCompetitor Comparisons
MailerZ vs Zoho Mail: Alias Routing vs Hosted Business Email
Buy a store if you need a store. Buy a hop if you only needed the domain. Dual MX is a split.
mailerz vs zoho mail
Read the guideBuyer Guides & Decision
Best Email Forwarding Service for Custom Domains in 2026
Pick by tests, not adjectives. Keep Gmail or Outlook. Prove inbound from another mailbox. Free receives. Solo $40/yr starts send-as.
best email forwarding service custom domain
Read the guideCustom Domain + Gmail
How to Receive hello@yourdomain.com in a Free Gmail Account
hello@ is a printed name. Map it to Gmail. Cut leftover MX. Probe from another mailbox. Do not buy a suite seat for one string.
receive custom domain email in gmail
Read the guide