Email marketing services cover the strategy, production, and ongoing management of email campaigns and automation sequences on your behalf. With an average ROI of $36-$42 for every dollar spent according to industry research, email is the highest-return digital channel available - but only when it's managed with strategic intent and executional discipline.

Through The Glass Creatives builds email programmes that integrate with brand voice, CRM data, and the full customer journey - not standalone batch-and-blast operations. Here's what that looks like in practice, and what you should demand from any provider you consider.

For cost context, email marketing pricing covers agency rates across tiers. If you're deciding between email and paid social as your primary channel, social media management services gives you a useful comparison point.

What Email Marketing Services Include

Strategy and List Architecture

Before any email is sent, a proper engagement defines the list segmentation architecture, the automation trigger logic, and the campaign calendar. This includes identifying the lifecycle stages that matter for your business - awareness, nurture, conversion, retention, reactivation - and mapping email touchpoints to each.

Campaign Creation and Copywriting

Campaign production includes copywriting, design (HTML template or custom), subject line testing, send-time optimisation, and list segmentation for each deployment. Quality email copy is brand-specific - it should sound like your brand, not a template.

Automation and Flow Management

The highest-value email work is automation - welcome sequences, abandoned cart flows, post-purchase nurture, re-engagement campaigns, and behaviour-triggered sequences. These run continuously and compound over time. Setting them up correctly takes significant upfront work; maintaining and optimising them is ongoing.

Deliverability and List Health

Deliverability - the percentage of emails that reach the inbox rather than spam - is technical and often neglected. Quality providers monitor sender reputation, bounce rates, unsubscribe patterns, and engagement signals, and act when they deteriorate. A compromised sender domain can take months to recover.

"Email that doesn't reach the inbox is just infrastructure cost. Deliverability hygiene is the unglamorous work that makes everything else possible." - Mherie Vic Prevendido, TTGC

Metrics That Should Appear in Every Report