Inboxes Don't Trust Strangers Either - What That Means For Your Cold Email

You wouldn't hand out your car keys to someone you just met, and Google feels the same way about your brand new domain.

That's the insight that most cold emailers miss when their first round of outreach campaigns fail. It's not the subject line, or the offer, but the fact that an inbox provider saw an unknown sender with no sending history and decided to drop every cold email campaign that lands there on day one. Prove you're not a scammer first, and then maybe I'll listen to you.

Trust can't be configured.

Any inbox provider worth their salt will operate under the same set of principles as humans: that strangers are guilty until proven innocent. Your domain has no sending history. A domain that has no sending history looks exactly the same in the eyes of a spam filter as one that was just created by a scammer on a whim, with no spam filters configured. And so your cold email campaign is silently tossed into the spam folder or bounced from the get-go. Trust is not some checkbox you can tick when you set up your domain, or buy a new IP address. Trust is built the hard way, slowly, and consistently, over time.

What does "building trust" look like in practice?

Inbox providers are quietly analyzing every domain or IP that's attempting to send them an email, evaluating them on factors such as:

• Sending patterns (are you sending 5 emails one day and then 500 the next?)

• Engagement (are people actually opening and responding to your emails?)

• Consistency (do you send emails at a steady pace?)

• Authentication (is your domain properly configured, or is somebody spoofing you?)

None of these factors are subjective. These are all hard metrics that an inbox provider will calculate for every domain and IP address attempting to send them an email. And based on these metrics, they decide whether to drop your email in the spam folder or the main inbox. If you want your cold emails to be seen by the person you're sending them to, and not some automated spam filter, you need to earn that inbox space.

Why does it take so long to "warm up" a new domain?

It's not that inbox providers are evil, it's simply that they have to prevent spam at all costs

A brand new domain blasting 200 cold emails the day after it's registered screams spam. Inbox providers know this, and they don't reward that kind of behaviour by letting through emails in the main inbox. Instead, they punish it by throttling everything you send to the spam folder or rejecting them outright, so that nobody sees them. Spam filters are ruthless when it comes to new domains, because established spammers take advantage of compromised servers to send spam on a large scale, and those tend to use brand new domains that appear to be completely legitimate at first. Inbox providers want to stop them at the earliest possible moment, not waste resources letting their emails through only to have them filtered out by the spam filter. That means, when building a brand new email list, you need to start slow and steady. Send a few cold emails every day to build up your sending reputation and volume, and eventually you'll have locked in an inbox presence without getting your emails blacklisted. But in the meantime, you might have opened up countless cold emails, and they weren't seen by a single person. They were dropped in the spam folder the second they arrived.

What can you actually do about it?

You need to warm up your relationship with every inbox provider you send to. The right approach is to send a few emails every day and get proper engagement on them, rather than blasting hundreds of cold emails at once and getting no response. You need to make sure that your domain is properly authenticated (SPF, DKIM, DMARC) and that you're sending emails from a trusted domain. You need to gradually increase your sending volume and frequency to build up your sender reputation. And above all, you need to manually track your domain activity, engagement, inbox delivery rates and spam rates, every single day, for every domain you send cold emails from. This is a time consuming process that most people would find tedious, even if they had the resources to do it.

This is what Unifers.ai warmup does for you with no effort on your part: it sends and receives emails on your behalf and tracks your domain's reputation, engagement, inbox delivery and spam rates. It allows you to build up trust with inbox providers, so that your cold email campaigns have a much better chance of actually being seen by the intended recipient, rather than bouncing back or getting filtered out by the spam folder. It does all of this automatically, so that you don't have to track those metrics yourself and guess at what point you should send a campaign. You don't need to buy a card to warm up your domain with Unifers.ai Warmup - it takes care of that for you.

Inboxes don't trust strangers overnight, just like humans. Unifers.ai can wait for you!