Observed Signal · Aug 11, 2026 · Technical Explanation · Source: DEV Community · Impact: 2/5 · Sentiment: Negative
Email tracking often misattributes open location
Open (image-based) email tracking records a token, timestamp, IP address and user-agent when a tracking image is fetched. IP-based geolocation can be accurate at country level but is frequently misleading below that because the request often originates from infrastructure rather than the recipient: provider-side image proxies, mobile carrier egress points, corporate centralised networks, or privacy relays/VPNs. Practical signals left for senders are limited to coarse country-level info and changes in access patterns; inferring a person’s physical location (e.g., office vs home) is unsupported. The author recommends that tracking tools disclose whether they derive/display locations, whether they store IP addresses and retention periods. The piece discloses the author builds BlueTicks and that the product states it does not store IP addresses.
Clarifies limits of IP-based email open geolocation and privacy implications for email marketers and tracking-tool designers; useful but not industry-shifting.
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Key Takeaways & Evidence Grounding
- Open tracking records a token, timestamp, IP address and user agent when the tracking image is fetched.
- IP-to-location databases are reasonably reliable at the country level but weak at city/precise levels.
- Four common causes of incorrect geolocation are provider-side image proxies, mobile network egress aggregation, corporate centralised egress, and privacy relays/VPNs.
- What remains useful is sometimes country-level data and occasional changes in access patterns; precise person-level location cannot be inferred reliably.
- The author builds BlueTicks and states the product shows fetch counts and its privacy page says no IP addresses are stored.
Connected Companies & Entities
3 Entities mapped“It does not ask for OAuth access to your Google account and it does not read the content of your emails....”
“I build BlueTicks for Gmail, a Chrome and Firefox extension that shows WhatsApp style ticks in your Gmail sent list, one tick sent and two b...”
“I build BlueTicks for Gmail, a Chrome and Firefox extension that shows WhatsApp style ticks in your Gmail sent list, one tick sent and two b...”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
What an email open reveals — never mention it
The article explains what an email "open" actually measures (a remote image request) and why open counts are an imperfect signal for whether a client has read a proposal. Common distortions include blocked images, corporate security scanners prefetching content, Gmail's image caching, and misleading location data. The author outlines four common open-status states (no opens, single open then nothing, multiple opens, open then long silence) and recommends appropriate follow-up actions for each. The single firm rule is to never reference tracking in follow-ups because it can be wrong and damages client trust. The author discloses building BlueTicks, a Gmail extension that displays WhatsApp-style ticks in the sent list; the tool follows the same technical limits described and offers a free tier and a $4/year paid tier.
What Email Read Receipts Actually Reveal
This article explains what email "read receipts" (image-based trackers) can and cannot tell job applicants. Read receipts record requests for a remote image, which often indicates an email was opened but can also be caused by security scanners, privacy proxies, or ATS ingesting mail — and many corporate clients block remote images entirely. The tracker is most reliable for a narrower question: whether a message reached a normal inbox (an open within a day or two usually indicates delivery). The author recommends checking open timestamps for automated patterns, using opens only to diagnose systemic delivery failures across many sends, avoiding mentioning tracking to recruiters, and limiting use to a single verification a few days after sending. The author discloses they build BlueTicks, a Gmail extension (free tier, $4/year paid) that does not add visible footers to messages.
GreenCore Solutions Opens London Office for A2A-Grocery Agentic Commerce
GreenCore Solutions Corp. (GSC) announced the opening of a sales office in London, UK, under a new entity, GreenCore Solutions (UK), to support its agentic commerce hub, A2A-Grocery.co.uk. The company introduced its 0-100 Agentic Density Scale, indicating that the UK and Europe account for 84% of grocery makers, while the USA accounts for only 16%. GSC's AI agents have processed 100 million transactions year-to-date, with 40% from Europe, 20% from the USA, and 40% from the rest of the world. The London office aims to connect European makers with AI agents buying for grocery retailers across 20 markets. GSC operates on Microsoft Azure and Google Cloud Enterprise, with data residency in each market.
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