Why Your Salesloft Emails Go to Spam (and the Fix)

The thing most people get backwards

Salesloft is not an email service provider like Mailchimp. It connects to your own mailbox and sends through it, so your deliverability is your domain's deliverability. Re-checking Salesloft settings rarely helps. The levers that move the needle are your domain reputation, your SPF/DKIM/DMARC, and your cold-sending discipline - none of which live in the Salesloft UI.

As you

Salesloft sends through your mailbox, not its own servers

2-4 wks

Warmup a fresh cold-outreach domain needs before cadences

0.1%

Spam-complaint rate Gmail and Yahoo expect you to stay under

Separate

Domain you should send cold from, to protect your primary

1. First: Salesloft sends as you, not as Salesloft

This single fact reframes everything. A marketing ESP sends from its own infrastructure and carries its own reputation. Salesloft, by design, authenticates to your Google Workspace or Microsoft 365 mailbox and sends each email through it. Inbox providers see mail from your domain, your mailbox, your IP path - so the reputation being judged is entirely yours. That's why "is Salesloft's deliverability good?" is the wrong question. The right one is "is my domain's deliverability good?"

2. Your domain's authentication (and the alignment trap)

Cold outreach is held to a stricter bar than mail people opted into, so weak authentication gets punished faster. You need a valid SPF record that authorises your sending path, DKIM signing enabled on the sending domain, and a DMARC record. The trap: if you send cold from a separate domain, all three records must be correct on that domain - not your primary. Plenty of cadences fail because the cold domain was bought, pointed at the mailbox, and sent from before authentication was ever finished.

How to actually check

Send yourself a test from the cadence, open it in Gmail, click the three dots → Show original, and read the SPF, DKIM and DMARC lines. You want all three to PASS and the DKIM signing domain to match your From: domain. If they don't, no amount of copywriting will save your placement.

3. You're sending cold from a domain with no reputation

A brand-new domain has zero sending history. Point a cold cadence at it on day one and you've sent the strongest possible spam signal: high volume of unsolicited mail from an unknown sender. Warm the domain first - low, steady, human-looking volume that ramps over two to four weeks - before any cadence touches it. And send cold from a separate domain so that if its reputation gets burned, your real business domain stays clean.

4. Volume and velocity - cadence aggressiveness

Filters watch rate, not just total. A mailbox that suddenly fires 200 near-identical emails looks automated, because it is. Keep per-mailbox daily volume conservative, ramp it slowly, and spread load across several warmed mailboxes rather than hammering one. Sudden spikes - the classic "we loaded a big list and launched" - are one of the fastest ways to land in spam.

5. Template content and the tells filters look for

Identical bodies sent thousands of times, heavy tracking, link-rewriting, image-laden signatures, and obvious mail-merge spintax are all patterns filters associate with bulk outreach. For cold one-to-one mail, the inbox rewards messages that look like a person typed them: plain-text styling, minimal or no tracking, and one link or none. The more your cadence looks like a campaign, the more it gets treated like one.

6. List quality - the cause hiding in plain sight

Cold lists are full of addresses that were scraped, guessed, or are long dead. Every invalid address is a hard bounce, and a high bounce rate is one of the loudest negative signals you can send. Worse, scraped lists are seeded with spam traps - addresses that exist only to catch senders who didn't get permission. One trap hit can damage your domain reputation for weeks.

The fix that actually moves the needle

Verify every cold list before you load it into a cadence. Remove invalid syntax, dead mailboxes, disposable domains, role addresses and likely traps, so you never send to an address that bounces. Run it through our List Cleaner for free first - it flags exactly the addresses that will hurt your reputation.

7. How to diagnose which one is hitting you

Work from cheapest to most involved. Send tests to your own Gmail, Outlook and Yahoo accounts and check placement. If tests land but real cadences don't, it's your list and cold engagement. If even tests fail, read the headers via Show original to confirm SPF/DKIM/DMARC, verify your sending domain against its exact spec with our CRM DNS Verifier, and run a Blacklist Sweep across 12 RBLs to see if you've been listed.

8. The order to fix things in

Fix authentication first - it's binary and fast. Then separate and warm a dedicated cold-sending domain. Then verify and clean every list before it enters a cadence. Then dial volume down and ramp slowly. Then strip the cadence content back toward plain, personal mail. Reputation is earned slowly and lost quickly, so the highest-leverage move is simply to stop sending to addresses that bounce.

Frequently asked questions

Why are my Salesloft emails going to spam if my domain is verified in Google?

Verifying your domain in Google Workspace only confirms your records resolve - it says nothing about inbox placement. Salesloft sends through your connected mailbox, so placement depends on your domain and IP reputation, how cold your list is, and how aggressively you send. The most common cause is cold outreach to addresses that never engage, which teaches Gmail to filter you regardless of authentication.

Should I use a separate domain for Salesloft cold outreach?

Yes. Cold outreach carries reputation risk, and you do not want it bleeding onto the domain you use for real business mail. Buy a separate but similar domain, warm it for two to four weeks before sending cadences, and set its authentication correctly. If the cold domain's reputation gets damaged, your primary domain stays clean.

How many cold emails per mailbox per day is safe in Salesloft?

Stay conservative - many senders keep new mailboxes under 20 to 30 cold sends per day and ramp slowly over weeks. Spreading volume across several warmed mailboxes matters far more than the exact number. Sudden spikes and identical high-volume sends from one mailbox are what trip spam filters.

Does Salesloft email tracking hurt deliverability?

It can. Open-tracking pixels and rewritten click-tracking links are signals filters associate with bulk and marketing mail, and for one-to-one cold outreach they make your message look less personal. For cold cadences, plain-text-styled emails with minimal or no tracking and one link or none usually land better.

How do I know if it is a Salesloft problem or a list problem?

Check whether the problem is universal or selective. Send tests to your own Gmail, Outlook and Yahoo inboxes. If those land fine but real cadences underperform, the issue is your list and cold engagement. If even test sends fail authentication or hit spam everywhere, it is a configuration or reputation problem. Verify your list and check your domain to separate the two.