TrekMail Blog
Practical guides, email hosting insights, and tips to get the most out of your domains and mailboxes.
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Email Forwarding
Business Email
Operations Playbook
Email Migration
Deliverability & DNS
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Webmail & Productivity
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Webmail & Productivity
Moving an Address Book Without Losing Half the Fields
Export contacts to CSV and you get names and email addresses. The second phone number, the postal address, the note from four years ago: gone, with no warning. The format you pick decides what survives.
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Alexey Bulygin
Webmail & Productivity
Why Calendar Invites Land at the Wrong Hour
Calendar time-zone bugs are almost never rendering bugs. They come from storing a wall-clock time with no record of which zone it referred to, and they surface weeks later when the clocks change or somebody travels.
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Alexey Bulygin
Operations Playbook
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.
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Alexey Bulygin
Deliverability & DNS
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.
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Alexey Bulygin
Email Forwarding
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.
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Alexey Bulygin
Webmail & Productivity
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.
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Alexey Bulygin
Operations Playbook
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.
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Alexey Bulygin
Deliverability & DNS
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.
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Alexey Bulygin
Email Migration
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.
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Alexey Bulygin
Deliverability & DNS
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.
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Alexey Bulygin
Business Email
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.
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Alexey Bulygin
Webmail & Productivity
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.
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Alexey Bulygin