How Seido Knives Transformed Their Email Deliverability with InboxAlly

Premium DTC Ecommerce · Klaviyo

As a premium knife brand operating in a competitive DTC ecommerce space, Seido Knives depends on reliable email deliverability, especially during high-revenue periods like holiday sales and product launches. In this case study, we explore how the Seido team leveraged InboxAlly to transform their email reputation, reach more customers, and unlock unprecedented sender performance metrics on Klaviyo.

Background

Seido Knives built a loyal customer base by focusing on craftsmanship and brand storytelling, both of which are reinforced through high-performing email campaigns. However, the company began noticing degraded inbox placement rates, particularly during intensive seasonal pushes. Despite having engaged subscribers and a strong content pipeline, emails were increasingly landing in spam or being throttled, threatening ROI and long-term sender trust.

The Challenge

• Suboptimal open and click rates, especially during sales-driven campaigns
• Unstable domain and IP reputation despite list hygiene and content compliance
• No visibility into placement signals at the mailbox provider (MBP) level

“We were getting stuck in the spam folder or throttled at just the wrong times. Every peak season felt like a gamble.” — Tino Delnero, Founder, Seido Knives

The InboxAlly Solution

To address these challenges, Seido onboarded InboxAlly and immediately began utilizing its deliverability features, including:

• Seed-based engagement to build positive reader behavior at scale
• Domain/IP monitoring and recovery through consistent inbox interaction
• Tiered warm-up strategies aligned with Klaviyo sending behavior

Strategy Highlights:

• Consistent daily engagement from InboxAlly’s seed network
• Real-time inboxing feedback to inform campaign pacing
• Use of higher-tier plans during peak seasons and mid-tier plans to maintain baseline reputation during off-peak

The Results

“We finally got to a place that is very healthy… 75 is the best score yet, and that’s incredible.” — Tino Delnero, Founder, Seido Knives

Long-Term Value and Partnership

InboxAlly has since become a core component of Seido Knives’ email marketing stack. The team no longer risks campaign launches blind to inbox placement issues and routinely allocates budget to InboxAlly plans as part of their broader send calendar.

“We definitely see InboxAlly as a long-term partner… we couldn’t have achieved this without InboxAlly’s seed engagement.” — Tino Delnero

Conclusion

Seido Knives’ experience underscores the mission-critical role of inbox placement in ecommerce success. With InboxAlly, the team:

• Achieved a record-high sender score on Klaviyo
• Sustained high domain and IP reputation for the first time
• Developed a repeatable strategy for deliverability across seasons

This case exemplifies how even well-run email programs can be elevated by layering in targeted inbox placement technology.

Recommendations for Brands

If you’re a DTC brand facing similar deliverability challenges, consider these actionable takeaways:

• Monitor Google Postmaster Tools weekly to assess IP/domain health
• Use InboxAlly seeds before and during critical campaigns—not just for warm-up
• Adjust seed volume tiers based on your sending calendar to maintain flexibility
• Treat reputation as a KPI—not just opens or CTRs