eCommerce Email Deliverability
That Protects Every Sale

Discount-heavy, image-heavy campaigns get extra scrutiny from mailbox providers, and high-volume promotional sending from a poor sender reputation on a cold or under-warmed domain trips filters almost immediately. The reliable fix is a trusted sending domain, correct SPF, DKIM and DMARC, clean lists, and consistent engagement. Warmy handles the warm-up, testing and monitoring side so the content isn't what sinks you.

Klaviyo deliverability problems almost always trace back to the sending domain, not the platform. A dedicated sending domain that was never warmed, a list with years of unverified pop-up signups, or a spam complaint rate spike from one promo blast will push Klaviyo mail into spam regardless of template quality. Warmy warms the domain, tests placement before each campaign and monitors reputation alongside what Google Postmaster Tools and Sender Score already show you, so you fix the cause instead of the symptom.

Shopify Email sends from shared infrastructure, so other senders' behavior can affect inbox placement for your store, and your own domain has to be authenticated and trusted to stand on its own. Missing DMARC, a cold custom domain or a sudden volume jump before a sale are the usual reasons Shopify emails land in junk. Warmy checks your authentication records, warms the domain and shows you where Shopify campaigns are landing before customers see them.

Yes. Warmy combines automated domain warm-up, inbox placement testing, reputation and blocklist monitoring, and authentication checks targeting the specific reasons retail and DTC emails land in spam. Because Warmy isn't an ESP, it works alongside Klaviyo, Shopify Email, Omnisend, Mailchimp, or any custom SMTP setup you already run.

Start at least a month before the season. Warmy gradually ramps warm-up activity toward your peak target, so your domain builds the reputation it needs before the surge and the volume jump looks like normal growth to mailbox providers. Run a placement test on each campaign template before it goes out, while Warmy monitors reputation and blocklists throughout the campaign period.

Plan for 2 to 4 weeks, depending on the daily volume you're building toward. Warmy ramps warm-up volume gradually and adjusts the pace based on how Gmail, Outlook, and others respond. Higher target volumes take longer and Warmy sets the schedule automatically.

Run a placement test in Warmy before every major send. You'll see exactly where your campaign lands across Gmail, Outlook, Yahoo, and more: inbox, promotions, or spam, provider by provider, before a single customer receives it.

The promotions tab is a Gmail sorting decision, not a spam verdict. It's triggered by promotional formatting, bulk-style HTML, image-heavy templates, and low recent engagement. Simpler, more personal emails from a trusted, reputable domain are far more likely to land in the primary inbox.

Keep your sender behavior consistent, authenticate your domains with SPF, DKIM and DMARC, suppress inactive subscribers and invalid addresses, control spam complaints and avoid sudden increases in volume. Continuous warm-up and reputation monitoring help maintain a strong sender reputation between large campaigns.

Avoid sending large campaigns from cold domains, regularly verify your customer lists, register for the feedback loops that mailbox providers and internet service providers offer so spam reports reach you, monitor bounce and complaint rates, and check your domain and IP reputation. Warmy's blocklist monitoring detects a listing the same day, before it affects more campaigns.

Yes. Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM) and Domain-based Message Authentication, Reporting and Conformance (DMARC) are the authentication protocols mailbox providers use to verify that your store emails legitimately come from your domain, and Gmail, Yahoo and Microsoft now require them for bulk senders. Correct authentication is one of the foundations of good deliverability, but it does not guarantee inbox placement on its own. Sender reputation, list quality, engagement, volume and content also matter.

Win-back campaigns are challenging because they target customers who have not engaged in a long time. Segment inactive contacts, remove invalid addresses, avoid mailing the entire dormant database at once and test inbox placement before scaling. Maintaining a healthy domain reputation between campaigns significantly reduces risk.