How Veritly built a fully custom email delivery pipeline with a fine-tuned LLM trained specifically on the brand's tone, catalog, and historical campaign data.
Emails dispatched monthly via a self-hosted SMTP stack, covering promotional, behavioral trigger, and transactional flows.
Achieved via dedicated IP warm-up, DKIM/DMARC alignment, and active bounce suppression — up from ~79% on shared ESP infrastructure.
Average open rate improvement across campaigns after switching to fine-tuned subject lines and send-time optimisation.
The client was a growing DTC brand paying escalating fees across Klaviyo and a secondary ESP. All automations, customer list segments, and three years of campaign history lived inside vendor databases. Additionally, off-the-shelf AI copy tools produced generic, robotic output that diluted the brand's established tone.
SaaS Dependency Lock-in: Escalating list size and email volume led to exponential platform fees and vendor lock-in risk.
Generic Output: Off-the-shelf AI assistants generated broad marketing copy lacking brand voice specificity.
We engineered a fully custom sending infrastructure and fine-tuned a language model on the brand's historical campaigns, customer support chats, tone guidelines, and product catalogs to automate high-performance personalized email campaigns.
Direct server integration allowing full control over reputation, bounce retries, and deliverability.
Drag-and-drop template generator producing clean, pre-tested responsive HTML formats.
Real-time open, click, conversion, and revenue tracking linked straight into the model training pipeline.
Rather than using broad prompts on generic models, this LLM is fine-tuned specifically on the client's internal marketing history.
The platform manages a variety of automated trigger sends utilizing the fine-tuned copy generator.
Predicting individual subscriber open profiles to automatically schedule delivery times.
Finetuning specific LLM model variants optimized for high-value buyers versus new subscribers.
Monitoring subscriber engagements and automatically triggering re-engagement or suppression paths.
Mapping ad-hoc inventory changes, price reductions, and restocks directly to email templates.
Book a session with our technology team to discuss custom integrations, database triggers, and workflow automations.