TrekMail Blog
Practical guides, email hosting insights, and tips to get the most out of your domains and mailboxes.
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Someone Deleted the Wrong Mailbox. Now What?
Mailbox deletion is the one administrative action with no undo in most systems, and it gets performed by tired people at the end of an offboarding checklist. A retention window turns that from an incident into an inconvenience.
Bring Your Own SMTP: When to Relay Through SES, SendGrid or Mailgun
Managed sending is the right default, and there are three specific situations where relaying through your own provider beats it. There are also two where people do it for reasons that turn out to be wrong.
Routing a Domain Without Creating a Single Mailbox
A domain you own but do not staff still receives mail: the acquired brand, the misspelling of your own name, the campaign domain from two years ago. Routing it all to an address you already read costs nothing to set up and something to run.
Mail Filters That Keep Working When Your Laptop Is Closed
If your rules live in Outlook, they run when Outlook runs, which is why your phone shows a mess and your desktop shows a tidy inbox. Sieve executes at delivery time on the server, so every device sees the same result.
Giving an AI Agent Access to Your Email Without Regretting It
Handing an agent your mail platform is a permissions problem before it is an integration problem. Split the tokens, scope them narrowly, make destructive operations two-step, and log everything.
Email Verification: What the Checks Actually Prove
Vendors advertise a single accuracy number, which hides the fact that different checks have wildly different reliability. Some are deterministic; the SMTP mailbox probe is not, and at Gmail it proves nothing at all.
Migrating a Hundred Mailboxes with a CSV File
Migrating mailboxes one at a time works until about the fifth one. This covers the CSV format, the preview that catches bad rows before anything connects, how retries behave, and the completeness audit that runs when the job finishes.
Automatic Email DNS Setup: One Click, or One Token for Every Domain
Hand-typing six DNS records per domain is how typos reach production. Domain Connect handles a single domain with an authorise-and-return flow, and a scoped Cloudflare token handles a hundred in one pass, with a preview of every change first.
One Email Signature for the Whole Company, Set Once
Per-user signatures never stay consistent: people paste them in the wrong place, keep last year job titles, and quietly drop the legal disclaimer. Setting it at the domain level moves it to one place that new mailboxes inherit automatically.
Scheduled Send and Read Receipts: What They Actually Guarantee
One of these two features does exactly what it says; the other is a polite request the recipient can ignore. Knowing which is which keeps you from drawing the wrong conclusion from a silent report.
A Shared Mailbox in Outlook and Apple Mail, Without Sharing a Password
The usual way teams run support@ is a password in a shared vault, which means no audit trail and a rotation every time someone leaves. Delegated access solves it properly: each member connects as themselves and the team inbox appears as a folder.
Send a Share Link Instead of an Attachment (and Stop Hitting the 25 MB Wall)
Every mail server on the delivery path gets a veto over your attachment, and the smallest limit wins. Moving the file off the message fixes size limits, quota duplication and revocation in one step.