How Mas Vashu Strengthened Deliverability and Created Early Pipeline for a Legal Services Client

Mas Vashu, a digital marketing agency, used InboxAlly to rebuild sender reputation on a legal services client’s outbound program after Microsoft placement problems. The agency reports deliverability moving from 26% to around 95% in the first month, and twelve qualified opportunities identified in the same period.

Background

Mas Vashu is a digital marketing agency that supports clients with outbound email and growth campaigns.

One of Mas Vashu’s clients, a legal services company, was using outbound email to build long-term referral relationships with lawyers. Their business model centered on recurring referrals rather than one-time transactions, meaning each successful relationship had strong long-term ROI potential.

Because of this, maintaining strong deliverability and consistent inbox visibility was especially important for the client’s outreach strategy. A referral relationship that never starts because the first email is filtered is not a lost message; it is a lost annuity.

The Challenge

Mas Vashu’s client was experiencing deliverability challenges, particularly with Microsoft recipients. Sender reputation issues were limiting campaign performance and making it harder to consistently reach the right prospects.

At the same time, Mas Vashu needed to help the client achieve their outreach volume goals without increasing risk or creating additional reputation issues. The challenge was not only to improve inbox placement, but to do it in a controlled and sustainable way.

• Placement problems concentrated at one mailbox provider rather than spread evenly
• Reputation damage already present before the recovery work began
• Volume targets that pulled in the opposite direction from reputation repair
• No structured view of which changes were actually moving the number

The InboxAlly Solution

Mas Vashu was looking for a more structured way to improve deliverability for their client’s outbound program. They needed more than a generic warm-up approach: visibility into what was happening, guidance on how to adjust the sending strategy, and a process that improved campaign performance over time.

InboxAlly supported that work as a phased recovery. The initial focus was repairing sender reputation and improving the health of the sending setup. From there the strategy shifted to identifying the channels, recipient groups, and message variations that drew the strongest responses.

Strategy Highlights:

• Deliverability repair and monitoring
• Sender profile optimization
• Seed distribution adjustments
• Cadence and sending-volume guidance
• Message testing and variation
• A more controlled approach to scaling outreach

Rather than pushing volume aggressively, the goal was to strengthen the foundation first, then move the campaign closer to the client’s target sending volume in a safer, better-informed way.

Working Process

The engagement was a collaborative troubleshooting process across meetings, campaign reviews, and ongoing adjustments.

InboxAlly worked with Mas Vashu to review campaign performance, evaluate deliverability patterns, and make practical changes to the client’s sending setup. Adjustments were made to seed distribution, cadence, sender profiles, and messaging based on the data rather than on assumption.

Mas Vashu also used multiple email variations and spin syntax to reduce repetition signals and support better campaign performance without creating unnecessary risk.

This gave the agency stronger control over the client’s outreach system and a clearer path for continued deliverability improvement.

What results did Mas Vashu achieve with InboxAlly?

The early results were promising.

Within the first month, Mas Vashu identified twelve qualified opportunities for their client and began having positive conversations with prospects, including meetings that led to potential new client relationships.

At the same time, campaign capacity moved closer to the client’s target sending volume while the deliverability recovery process continued. The campaign was still in its stabilization phase, but Mas Vashu had a stronger outreach foundation, better control over the sending system, and a clearer path for continued improvement.

“I enjoyed working with the team at InboxAlly because they were very knowledgeable and demonstrated their expertise in the field. The software itself improved our deliverability from 26% to around 95% in the first month.” — Mas Vashu Marketing Team

What can agencies learn from Mas Vashu?

• Treat a single-provider problem as a reputation signal, not a quirk — concentrated failure at one mailbox provider usually points at the sender, not the recipient
• Repair the foundation before chasing the volume target; scaling into a damaged reputation compounds the damage
• Vary messaging to reduce repetition signals, but pair it with reputation work rather than relying on it alone
• Judge progress on placement, not on send volume or open rate alone
• Expect stabilization to take longer than the first good week — early wins are a signal, not a finish line

How can agencies improve deliverability for client campaigns?

Agencies carry a harder version of the problem: reputation belongs to each client’s domain, but the sending practices are yours. The pattern that worked here generalizes well. Establish where mail is actually landing per provider, repair reputation before increasing volume, change one variable at a time so the data stays readable, and treat the target sending rate as a destination rather than a starting point.

InboxAlly supports that work with engagement-based reputation building alongside inbox placement testing, blocklist monitoring and authentication checks, so the diagnosis and the repair live in the same place. See InboxAlly for email marketing agencies for how this runs across multiple client domains.

Frequently Asked Questions

How quickly can deliverability improve with InboxAlly?

Mas Vashu reports deliverability moving from 26% to around 95% within the first month of the engagement. Results vary with starting reputation, sending volume and how aggressively volume is scaled during recovery — this campaign was still in a stabilization phase when those results were reported.

Why do emails fail at Microsoft specifically?

Mailbox providers score senders independently, so reputation damage often shows up at one provider before the others. Concentrated failure at Microsoft recipients while other providers behave normally usually indicates a sender reputation problem with that provider rather than a content or list problem.

Can an agency use InboxAlly across multiple client domains?

Yes. Each client domain runs as its own sender profile with its own engagement, monitoring and placement data, which is how Mas Vashu managed recovery for this client without affecting other campaigns.

Should you keep scaling send volume while repairing reputation?

Generally not. In this engagement the sequence was deliberate: repair the sending foundation first, then move toward the client’s target volume once placement had improved. Scaling into a damaged reputation tends to reinforce the problem rather than outrun it.

More InboxAlly Case Studies

• Seido Knives: How an E-commerce Brand Transformed Email Deliverability
• Surveylab: How a High-Volume Sender Recovered Google Reputation
• Wellness Brand: From Spam Folder to 90% Inbox Placement
• Email Marketing Specialist: Open Rate Boost and Spam Reduction
• Mas Vashu: Deliverability Recovery for a Legal Services Client

Case study produced with Mas Vashu, a digital marketing agency running outbound email programs for its clients.