Sending a mailing that actually arrives
Sending a mailing means sending one message at once to a list of recipients: an offer, an invitation, an announcement. Technically that is simple; the hard part is making sure it arrives. Anyone who writes to a thousand addresses at once without authentication and without a warmed-up reputation will see a large share land in the spam folder.
Below are the six steps between your address list and the recipient's inbox, with the point where each one goes wrong in practice. The order is not optional: skipping step 2 makes step 5 pointless.
From address list to inbox
Get your address list in order
Start with the list, not with the copy. Every address must be on it with demonstrable consent: record for each contact where and when that opt-in happened. Remove duplicates, fix typos in domain names, and delete addresses that hard bounced on a previous send.
Where it goes wrong: A list that sat unused for months is no longer a good list. Addresses expire, people change employer, and abandoned mailboxes are sometimes turned into spam traps. Never send everything at once to an old list.Authenticate your domain
Without SPF, DKIM and DMARC a receiving server cannot establish that the mailing comes from you, and then it counts as suspicious. These three DNS records are the basic condition for any send to more than a handful of people — not an optimisation you add later.
Where it goes wrong: A domain may only have one SPF record. Anyone who adds several services over time sometimes ends up with two records, and then the check fails entirely.Build the mailing
Pick a sender name the recipient recognises and a subject line that says what is in the message. Put the unsubscribe link visibly at the bottom — hiding it leads to spam complaints, and a complaint weighs heavier than an unsubscribe. Check how it renders on mobile: that is where most people open it.
Where it goes wrong: A mailing that consists of one large image is distrusted by filters and unreadable as soon as images are blocked. Always include real text.Test before you send
Send yourself a test copy to different providers — a Gmail address, an Outlook address and an address on your own domain. Click every link. Check that the message lands in the inbox and not in Promotions or Junk.
Where it goes wrong: A test to a single address on your own mail server proves nothing: that server trusts you anyway. The external providers are the actual test.Send it spread out
A sudden volume spike from an address without reputation is exactly the pattern filters recognise. Build up: start with part of the list, look at the result, then increase. At 2mail that spreading happens automatically, with a warm-up for new domains.
Where it goes wrong: Do not send right before the weekend or late at night if you cannot act on the result. If something goes wrong, you want to be there.Measure and clean up
After sending, look at opens, clicks, bounces and unsubscribes. Remove hard-bouncing addresses immediately — they will keep bouncing and damage your reputation. At 2mail that happens automatically; the statistics are shown per domain in the dashboard.
Where it goes wrong: A high open rate says little on its own now that mailbox providers preload images. Look at clicks and at unsubscribes: those are a real signal.Mailing, newsletter or transactional email?
The three are used interchangeably, but they differ in frequency, in what the recipient expects and in what the law requires. That difference determines how you send them.
| Type | What it is | Consent |
|---|---|---|
| Mailing | One message to a list, at a moment you choose: an offer, invitation or announcement. | Opt-in required. The recipient must have signed up or have an existing customer relationship. |
| Newsletter | A mailing with a fixed rhythm and a fixed theme, which people deliberately subscribe to. | Opt-in required, with an unsubscribe link in every send. |
| Transactional email | An automatic message following an action: order confirmation, password reset, invoice. | No opt-in needed — the recipient triggered the action and expects the message. |
Keep marketing and transactional separate. A disappointing mailing that draws spam complaints must never drag down the delivery of your order confirmations. At 2mail both streams therefore run over a separate, separately warmed-up route.
Six mistakes that push a mailing into the spam folder
| Mistake | What happens |
|---|---|
| A purchased address list | Spam complaints and spam traps are all but guaranteed. A single send to such a list can damage your domain reputation for months — and it also breaches the GDPR. |
| Sending from a free address | A sender on gmail.com or hotmail.com sending through another server fails DMARC. Always use an address on your own authenticated domain. |
| Running a cold domain at full volume | A new domain has no reputation. Sending thousands of messages straight away reads like a spam outbreak; volume has to grow in a controlled way. |
| Mixing marketing and system mail | Spam complaints on a campaign carry over to your order confirmations and password resets — precisely the messages that must always arrive. |
| Hiding the unsubscribe link | Anyone who cannot unsubscribe hits the spam button. With mailbox providers, a spam complaint weighs far heavier than an unsubscribe. |
| Leaving bounces in place | Continuing to send to addresses that do not exist is the clearest signal that your list is not maintained. Filters penalise that immediately. |
Ready to send your first mailing?
2mail combines the SMTP infrastructure that handles delivery with the campaign management you use to build and measure the mailing. Authentication, spreading, bounce handling and unsubscribes are included — you only have to create the content.
