--- title: BluePoint Email Asset Delivery A/B Testing type: article created: '2026-04-05' updated: '2026-04-05' source_docs: - raw/2025-11-19-bluepoint-atm-marketing-call-102912257.md tags: - email-marketing - a-b-testing - hubspot - bluepointatm - one-pagers - direct-mail layer: 2 client_source: null industry_context: null transferable: true --- # BluePoint Email Asset Delivery A/B Testing ## Overview During the November 2025 marketing review, BluePoint ATM and the Asymmetric team identified an open question around the optimal method for delivering collateral (one-pagers, spec sheets) to prospects via email. The core tension: **email attachments** are immediately accessible but feel bulky and can trigger spam filters, while **links** drive website traffic and enable more granular tracking but may feel suspicious to cold prospects. A decision was made to research best practices and, if data is inconclusive, run an A/B test to determine which delivery method produces better open and click-through rates for BluePoint's outbound sequences. See also: [[clients/bluepointatm/index]] | [[meetings/2025-11-19-bluepoint-marketing-review]] --- ## The Question > Should one-pagers and collateral be sent as **email attachments** or as **links** (hosted on the domain or in HubSpot)? Both approaches have merit depending on the audience and relationship stage. BluePoint's outbound sequences target cold-to-warm prospects, which adds complexity — link-averse recipients may distrust URLs from unfamiliar senders, while attachment-averse recipients may skip bulky emails entirely. --- ## Options Evaluated ### Option A: Email Attachment (PDF) - **Pros:** Immediately accessible; no click required; works offline - **Cons:** Can inflate email size; may trigger spam filters; no granular open/view tracking beyond download count ### Option B: Link to Hosted Asset - **Sub-options:** - **HubSpot Files:** Asset lives in HubSpot; download events tracked natively within the CRM; can surface in contact activity timelines - **Domain-hosted PDF (bluepointatm.com/...):** Drives traffic to the BluePoint domain; provides SEO signal from clicks; trackable via UTM parameters or QR codes - **Pros:** Enables tracking of who viewed/downloaded and how many times; keeps email lightweight; domain-hosted version adds marginal SEO value - **Cons:** Requires prospect to click; cold prospects may be link-averse ### Option C: Both (Hybrid) - Include a link as the primary CTA and attach the PDF as a fallback. Increases email weight but removes friction for both audience segments. --- ## HubSpot Tracking Capability Assets uploaded to HubSpot Files can be linked directly in email sends. When a contact clicks and downloads, the event is logged to their contact record, enabling: - Visibility into which prospects engaged with which collateral - Segmentation and follow-up triggers based on download behavior - Attribution of asset engagement to specific email campaigns This is distinct from a domain-hosted PDF, which would require UTM parameters or QR codes for equivalent tracking. --- ## QR Code Tracking (Related: Direct Mail) A parallel discussion surfaced around **direct mail QR codes**. BluePoint expressed interest in assigning a **unique QR code per mailer piece** so that individual recipient intent could be tracked (e.g., if a specific address visits the site five times, that signals high purchase intent). **Feasibility notes:** - Generating unique QR codes per piece is technically possible but operationally intensive — potentially thousands of unique links per mail run - Cost depends on the printing plate used; black-plate-only QR codes (matching the existing variable-data black printing used for recipient names) would be the most cost-effective path - Melissa Cusumano to obtain a cost estimate from the printer Current QR codes on one-pagers support **source-level tracking** (e.g., "came from Buyer's Edge spec sheet") but not individual-recipient-level tracking. --- ## Recommended Next Steps | Action | Owner | Status | |---|---|---| | Research industry best practices: attachment vs. link open/click rates | Melissa Cusumano | Pending | | Consult Chuck (Sales Growth MD) on asset delivery best practices for outbound | Wade Zirkle | Pending | | Get cost estimate for unique-per-piece QR codes on direct mailers (black plate) | Melissa Cusumano | Pending | | Design A/B test in HubSpot if research is inconclusive | Melissa Cusumano | Pending | | Upload approved one-pagers to HubSpot Files for link-based delivery | Melissa Cusumano | Pending | --- ## Decision Log - **No final decision made** on attachment vs. link at time of meeting - Team agreed to **research first**, then A/B test if data doesn't clearly favor one method - Wade Zirkle noted preference for links over attachments personally, but acknowledged cold-prospect link aversion as a real concern - Domain-hosting PDFs (bluepointatm.com) was flagged as a secondary benefit for SEO/traffic, not the primary driver of the decision --- ## Generalizable Insight This question — attachment vs. link — is a recurring decision point for clients running outbound email sequences with collateral. The right answer typically depends on: 1. **Audience warmth:** Warm/known contacts tolerate links better; cold contacts may prefer attachments 2. **Tracking priority:** If CRM-level engagement data matters, HubSpot-hosted links win 3. **Domain authority goals:** If driving site traffic is a priority, domain-hosted assets add marginal value 4. **Email deliverability:** Heavy attachments can hurt deliverability scores; links are safer for bulk sends A/B testing within HubSpot is the most reliable way to get client-specific data rather than relying on general benchmarks.