Disposable Email Domains blocklist

Use in your agent

Load disposable email domains into pandas and Parquet. Checked against the provider's documentation on Nov 1, 2026.

Access

• No account or key. The newline-delimited blocklist is a public raw file.

Request

curl -O 'https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/disposable_email_blocklist.conf'

Format

UTF-8 plain text with one lowercase disposable-email domain per line, sorted alphabetically and written without an @ sign.

Load into pandas and Parquet

Needs Python 3 with requests, pandas and pyarrow.

"""Disposable Email Domains blocklist -> pandas -> Parquet. No key."""
import io

import pandas as pd
import requests

URL = "https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/disposable_email_blocklist.conf"
r = requests.get(URL, timeout=60)
r.raise_for_status()
domains = [line.strip() for line in io.StringIO(r.text) if line.strip() and not line.startswith("#")]
df = pd.DataFrame({"domain": domains})
df["labels"] = df["domain"].str.count(r"\.") + 1
df.to_parquet("disposable_email_domains.parquet", index=False)
print(len(df), "domains", "first", df["domain"].iloc[0], "sorted", df["domain"].is_monotonic_increasing)

Run by us on 2026-11-01 (python 3.13.5 | pandas 3.1.0 | pyarrow 26.0.0 | requests 2.34.2). Result: 10115 domains first 0-mail.com sorted True

Limits

• Rate limit: Not stated.
• No update cadence is promised.
• The file is a current blocklist, not a dated historical series.

Quirks

• The maintainers say some listed domains may no longer be disposable.
• Match the input domain and its parent labels; public-suffix cases can require a third-level entry.
• A listing is an account-abuse screening signal, not evidence that an address or registrant is malicious. Do not visit or fetch listed domains.

Terms and attribution

• The work is dedicated under CC0 1.0.
• The project permits copying, modification, distribution and commercial use without asking permission.

Sources

• https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/README.md: “This repo contains a [list of disposable and temporary email address domains](disposable_email_blocklist.conf) often used to register dummy users in order to spam or abuse some services.”
• https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/README.md: “We cannot guarantee all of these can still be considered disposable but we do basic checking so chances are they were disposable at one point in time.”
• https://raw.githubusercontent.com/disposable-email-domains/disposable-email-domains/main/README.md: “You can copy, modify, distribute and use the work, even for commercial purposes, all without asking permission.”