Outbound field note
Email List Cleaning Service: The Batch Acceptance Test
Email List Cleaning Service: The Batch Acceptance Test
Evaluate an email list cleaning service with a batch acceptance test for dispositions, catch-alls, suppressions, deletion, and credits.
Outbound field note
How to Read a DMARC Report and Know What to Fix
How to Read a DMARC Report and Know What to Fix
Read a DMARC report from the outside in, connect source IPs to senders, and turn SPF, DKIM, alignment, and disposition results into action.
Outbound field note
Google Postmaster Tools: Turn Dashboards Into Decisions
Google Postmaster Tools: Turn Dashboards Into Decisions
Use Google Postmaster Tools to read spam, reputation, authentication, and delivery signals without overreacting to incomplete data.
Outbound field note
Email Bounce Back Codes: What They Mean and What to Do
Email Bounce Back Codes: What They Mean and What to Do
Decode an email bounce back by rejection code, identify who owns the problem, and choose whether to retry, suppress, or repair the sending setup.
Outbound field note
Inbox Placement Test: A Practical Guide for B2B Senders
Inbox Placement Test: A Practical Guide for B2B Senders
Learn what an inbox placement test measures, how to run one, and how to turn seed results into safer B2B sending decisions.
Outbound field note
Microsoft 365 Outage: The Outbound Failover Plan You Need
Microsoft 365 Outage: The Outbound Failover Plan You Need
A Microsoft 365 outage can stall Exchange Online mail flow during an active campaign. Build an outbound failover plan before the next incident.
Two Providers Now Handle 38.6% of Popular-Domain Mail: The Deliverability Risk Nobody Is Mapping
Two Providers Now Handle 38.6% of Popular-Domain Mail: The Deliverability Risk Nobody Is Mapping
Google Workspace and Microsoft 365 now sit behind 38.6 percent of popular-domain mail, up from a self-hosted majority a decade ago. Outbound teams that cannot say which provider receives each prospect's mail are running a single point of failure they have never measured.
Gmail's Verified Sender Program: What the Political Exception Signals for B2B
Gmail's Verified Sender Program: What the Political Exception Signals for B2B
Gmail's new Verified Sender Program lets identity-checked political senders skip standard spam filtering if they hold complaint rates under 0.3 percent. It is not a B2B exception, but it previews where inbox access is headed for every sender.
Email Warmup Software Compared: Network Size Is Not Enough
Email Warmup Software Compared: Network Size Is Not Enough
Email warmup software is easy to compare by headline pool size and hard to compare by what matters: reply realism, risk controls, ownership, and fit.
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