01 / THE IDEA

Email Categorisation in practice.

Email categorisation predicts user-defined folders from message content. Thread duplication, private text and incorrectly hidden messages are practical concerns from the start.

Real-world use case · Proposed extension

A possible application for shared-inbox teams: Help small teams organise a shared inbox while retaining a complete all-mail view. This extension is not delivered by the supplied starter.

02 / THE BUILD

How to build a email auto-categorization project
step by step.

01

Prepare the data

Use consented or synthetic messages, strip identifiers and split complete threads together.

02

Build the experiment

Fit a text-classification pipeline with an uncertain category and user-defined labels.

03

Evaluate the result

Measure per-folder recall and inspect important messages placed in the wrong folder.

04

Define a reviewable output

Suggest reversible labels without deleting messages or changing access permissions.

03 / SOURCE SNAPSHOT

What the email auto-categorization starter actually does.

The supplied starter creates 800 synthetic binary-classification rows with ten numeric features. It makes a stratified train/test split, fits a scaled RandomForestClassifier pipeline and prints a classification report.

SOURCE EXCERPTPython
model = Pipeline(
    steps=[
        ("scale", StandardScaler()),
        ("classifier", RandomForestClassifier(
            n_estimators=250, random_state=RANDOM_STATE)),
    ]
)
model.fit(X_train, y_train)
predictions = model.predict(X_test)
print(classification_report(y_test, predictions))
Important limitation

The supplied starter has no email text, vectoriser or folder labels. Synthetic binary classification does not establish performance on the proposed application. The source report uses one split; it supplies no deployment or real-world validation.

04 / BEYOND THE CLASSROOM

Where a email auto-categorization project could go next.

PROPOSED BUSINESS CONCEPT

Email Categorisation: a pilot concept

Proposed extension: Help small teams organise a shared inbox while retaining a complete all-mail view.

WHO IT COULD SERVEShared-inbox teams
FIRST MVPSuggest reversible labels without deleting messages or changing access permissions.
KEY RISKPrivate-message exposure and missed important email

This is a potential application pathway, not a delivered product. The supplied starter does not implement this service or validate it with real users.

05 / WHAT YOU TAKE AWAY

What a email auto-categorization project puts on your resume.

  • Fit a text-classification pipeline with an uncertain category and user-defined labels.
  • Measure per-folder recall and inspect important messages placed in the wrong folder.
  • Suggest reversible labels without deleting messages or changing access permissions.
  • Explain this limitation: The supplied starter has no email text, vectoriser or folder labels.
Want to build this with mentors and a lab?

Networkers Home runs this topic inside its AI Engineer Course, with placement support and hands-on labs.

AI Engineer Course
06 / QUESTIONS STUDENTS ASK

Email Auto-Categorization project FAQs.

Is Email Auto-Categorization suitable for a final year project?
Yes — it fits a final year project scope: design dataset/labels, implement text processing and classifiers, and evaluate performance on real or synthetic emails.
What should I learn or prepare before starting?
Familiarise with Python NLP basics, vectorisers (TF-IDF), scikit-learn classifiers, evaluation metrics, and data anonymisation for texts; plan folder taxonomies and threaded message handling.
How do I evaluate progress and how long will it take?
Evaluate via precision/recall, confusion matrices, and per-folder F1; expect 6–12 weeks for dataset creation, modelling and analysis depending on scope and dataset availability.