Substack is not a dependable website on an ordinary mainland China connection: GreatFire reports blocking for a tested publication address and many other Substack URLs. Newsletter delivery, account access and payment are separate checks, so a working inbox does not prove that the website or app will work.［1］［2］

Key Takeaways:

Treat publication pages, app requests and email delivery as separate paths.

Check the actual publication you need, rather than an unrelated homepage.

Missing mail can come from subscription settings or filtering, not just network restrictions.

Writers should keep local drafts and verify publication before retrying.

What can you infer about Substack in China?

The GreatFire publication page checked on October 5, 2026, reports blocking for inbetweenreview.substack.com; its domain overview also lists other affected addresses.［1］ This is evidence about tested URLs and their measurement windows. It is not our own nationwide test or a guarantee about every publication, custom domain, app operation or reader's connection.

A newsletter has at least two ways to reach a reader: a page requested by your device and a message delivered to your mailbox. A page timeout does not establish that the sender attempted an email, and a received message does not establish that images, links or the entire website can load. Keep those observations separate when asking for help.

Use the China network planning overview to choose a permitted connection strategy before departure. If other services are also failing, consult the broader app and website checks. The useful question is whether your intended reading or writing task works end to end, not whether one page once opened.

How should you prepare a permitted reading connection?

Start with a publication and an article you are entitled to read. Keep its title and address in your travel notes, together with a permitted local reading copy if the publisher provides one. Avoid relying on an old browser tab: it may display cached text while a new page, login or image request fails.

For this publication-page check, AethoVPN provides a network connection you can evaluate before your trip. Prepare the Windows installer for a laptop; for a Mac or iPhone, obtain configuration through the website guide and use Pro or Premium. View current available locations in the app, connect using a route permitted by your organization and local rules, and verify the exit IP before requesting a fresh article page.

The connection does not deliver missing newsletter emails, grant a paid subscription or validate a payment method; mainland availability is not guaranteed. Start the three-day Pro trial to evaluate your own permitted reading workflow; the trial is available once per new user.

Test a fresh page without exposing private content. If your account has access to a paid article, confirm the text you need appears after authentication. If you encounter a membership or payment prompt, stop treating the result as a pure connection failure. Record the visible outcome so you can distinguish an incomplete page from a valid restriction.

Why are Substack emails missing from your inbox?

Substack's help page recommends checking the registered address, spam folders, publication sender and account settings. It also documents an email-test page for an individual publication and a notification preference that can favor push notifications over email.［2］ These are ordinary delivery checks; they do not support a claim that all mainland mailbox providers block Substack.

Check whether you subscribed with the same address you are inspecting. A typo, another account or an unsubscribed publication can explain an empty inbox even when the website is accessible. If the newsletter went to a filtered folder, follow your mailbox provider's controls rather than forwarding credentials to a stranger offering to fix delivery.

When the publication website can be reached, use its account email-test function as described in the official instructions. If delivery is disabled, review the subscription status. On an organizational mailbox, ask your IT team about filtering; do not assume you can override a company rule.［2］

What does a received newsletter prove?

A delivered message proves that this message reached that mailbox at that time. It does not prove uninterrupted future delivery, access to linked posts, or a valid paid entitlement. Open only links you recognize, and keep account codes out of screenshots sent to a publication's support team.

If your mailbox itself depends on Google, prepare separately for Google service access. Changing the browser's network connection is not a substitute for recovering access to the mailbox used for login.

How do Substack publishing and paid access differ?

Reading and writing have different acceptance checks. A reader needs the intended article and the correct subscription rights. An author needs access to the editor, a saved draft and a confirmed publication result. Seeing an editor or pressing a publish control alone does not prove that a post was stored or distributed.

Before travel, keep your own draft text and original media in a controlled local copy. Do not use a public computer to verify a subscriber list or paste confidential material into a diagnostic form. For a time-sensitive issue, arrange an authorized colleague's workflow in advance without sharing personal passwords or account codes.

After an interrupted publication attempt, check the post's actual state before retrying. Repeatedly submitting the same text can make it harder to tell which version is final. Confirm the visible article and any separate distribution outcome; do not equate a public post with proof that every subscriber received an email.

Paid access introduces another boundary. If the website loads but an article remains restricted, check that you are using the account with the relevant subscription. If a payment is declined, consult the platform and payment provider through their official channels. Do not repeatedly change locations or invent billing details to address a qualification issue.

Writers comparing platforms should also check Medium's draft and reading boundaries. Neither service should be treated as your only copy of unpublished work, and successful access to one is not evidence about the other.

Which symptom should you investigate first?

Use a small, repeatable test and change one variable at a time. Write down whether you used a website or app, the publication address, the broad network type, the time and the visible error. Avoid collecting a subscriber's private message or a full account session just to prove a timeout.

Symptom	Next check	What the result cannot establish
Publication page times out	Try a fresh public article on a permitted connection	Whether emails were sent or delivered
Page opens but pictures do not	Check whether text and linked resources load separately	That every app request is available
Newsletter does not arrive	Verify address, subscription and mailbox settings	A nationwide mailbox-provider block
Login message never arrives	Investigate the mailbox and account delivery path	That a new VPN location will generate a code
Paid post remains locked	Check the subscription attached to this account	That the network can grant reading rights
Payment fails after the page loads	Consult official billing support	That changing an IP fixes payment eligibility
Publishing appears interrupted	Inspect saved and published state before retrying	That a pressed button completed distribution

If a second permitted network changes the page result, you have a useful network comparison, not a comprehensive explanation of the service. If the same account error appears on both, investigate account state. Stop when the next step would violate an organization policy, platform terms or local law.

What should readers and authors keep ready?

Readers should keep publication addresses, allowed local copies, access to their own mailbox and a realistic fallback reading schedule. If a message is available offline, verify it includes the needed text rather than just a notification or a link. Do not distribute paid articles without the right to do so.

Authors should keep local drafts, original media, an editorial calendar and a way to contact collaborators through an approved channel. Decide who can postpone a publication if the intended workflow fails. A delay with a known draft is safer than repeated uncertain submissions with no recoverable copy.

If access remains unreliable, ask the publisher for a permitted alternative such as an authorized emailed copy or another official distribution channel. Do not assume that a copy on an unfamiliar site is accurate, licensed or current. Preserve the source title and date so your research notes remain attributable.

Summary

Expect website access problems and test the publication you actually need.
Diagnose newsletter delivery through subscription and mailbox settings.
Keep entitlement and payment checks separate from network tests.
Protect your own drafts and verify saved or published state before retrying.

FAQ

Can I rely on the Substack app instead of the website?

An installed app is not proof of access in mainland China. Check a fresh article, account access and required media; the app can depend on requests that differ from the publication website.

Does a delivered email mean Substack is unblocked?

A delivered email only confirms that a particular message reached your mailbox. Links and media in it can still require website requests that fail on your connection.

Are mainland email providers always blocking newsletters?

The cited evidence does not establish a universal mailbox-provider block. Check your registered address, spam settings, subscription and notification preference before attributing missing mail to a regional policy.［2］

Can a VPN recover a missing newsletter?

A VPN changes the device's network path, not the sender's delivery history or mailbox filters. Diagnose the missing message with the official email checks and your mailbox provider.

Will changing locations unlock a paid article?

Changing a network location does not grant subscription rights. Verify the account and publication entitlement before contacting billing support, and do not use false payment details.

What should a writer do after a failed publish attempt?

Keep a local draft and inspect the post's saved or published state before retrying. A visible editor or submitted request does not prove that publication and email distribution both finished.

Is a successful test before travel enough?

A pre-travel test confirms only that workflow on that connection and date. Keep permitted reading copies or drafts and an approved fallback because mainland network conditions can differ.

Disclaimer: VPN regulations vary by country and region and can change. Review local laws, organization requirements and platform terms before using a VPN; this article is not legal advice.

Sources

GreatFire — Substack publication measurement — https://en.greatfire.org/https/inbetweenreview.substack.com
Substack — Missing subscription emails — https://support.substack.com/hc/en-us/articles/360037488332-I-subscribed-to-a-Substack-publication-but-am-not-receiving-any-emails-What-can-I-do

Sources checked 5 October 2026.

Does Substack Work in China?