Introduction

In today's digital landscape, email verification is crucial for businesses to maintain a healthy email list, prevent bounces, and ensure deliverability. However, verifying emails from certain domains can be a challenge, especially when it comes to catchall emails. In this blog post, we'll explore the difficulties of verifying emails from tup.tsinghua.edu.cn and how BounceBan can help overcome these obstacles.

About tup.tsinghua.edu.cn

tup.tsinghua.edu.cn is the email domain of Tsinghua University, a prestigious research university in Beijing, China. The domain is set to catchall, which means that it accepts all emails sent to it, regardless of whether the recipient exists or not. This setup can make it difficult for traditional email verification services to accurately verify email addresses.

Challenges of Verifying Emails at tup.tsinghua.edu.cn

Verifying emails at tup.tsinghua.edu.cn can be challenging due to several reasons:

• Email Security Gateways (ESGs): There is a possibility that tup.tsinghua.edu.cn uses ESGs like Cisco Secure Email (ESA), Barracuda, Proofpoint, Abnormal Security, Mimecast, SpamTitan, Checkpoint, Forrester, Sophos, etc. to filter out unwanted emails. If this is the case, simple SMTP tests used by traditional verification services may fail.
• Catchall Emails: As mentioned earlier, tup.tsinghua.edu.cn is set to catchall, which means that traditional verification services may not be able to verify emails using simple SMTP tests.
• No Bounce Messages: Even if you send test messages to an invalid email address at tup.tsinghua.edu.cn, it may not always return a bounce message, making it difficult for services like Scrubby to verify emails.

Risks of Not Verifying Emails at tup.tsinghua.edu.cn

Not verifying emails at tup.tsinghua.edu.cn can lead to several risks, including:

• High Bounce Rates: If you don't verify emails, you may end up with a high bounce rate, damaging your sending reputation and resulting in lower delivery rates, open rates, and click rates.
• Outdated Lists: Failing to verify emails can lead to outdated lists, which can negatively impact your email marketing campaigns.
• Restricted Accounts: If your bounce rate is too high, your email service providers may restrict your account.

Using BounceBan to Verify Emails at tup.tsinghua.edu.cn

BounceBan is the only service capable of reliably verifying catchall emails and emails behind Email Security Gateways. Here's how to use BounceBan to verify emails from tup.tsinghua.edu.cn:

Individual Verification:

1. Create a free account at https://bounceban.com/.
2. Go to the BounceBan dashboard https://bounceban.com/app/verify.
3. Enter the email for verification, e.g., xxx@tup.tsinghua.edu.cn, and click the "Verify for free" button. BounceBan provides unlimited free single verifications.

Bulk Verification:

1. Upload a CSV file at https://bounceban.com/app/bulk/list.
2. Verify emails in bulk using BounceBan's advanced algorithms.

API Integration:

1. Integrate BounceBan's API into your application using the API reference https://bounceban.com/public/doc/api.html.
2. Verify emails in real-time using BounceBan's API.

Why Choose BounceBan?

BounceBan is the only service that can accurately verify catchall emails with a 97%+ accuracy rate. Other services like Emailable, NeverBounce, ZeroBounce, DeBounce, SendGrid, Snov, RocketReach, and Hunter are unable to verify catchall emails. BounceBan's success rate in verifying catchall emails is on a consistent upward trajectory, and it verifies millions of emails daily using advanced AI to recognize patterns and enhance accuracy.

FAQs

General FAQs

1. What is a catchall email? A catchall email is an email address that accepts all emails sent to a specific domain, regardless of whether the recipient exists or not.

2. Why is verifying catchall emails challenging? Verifying catchall emails is challenging because traditional verification services may not be able to accurately verify emails using simple SMTP tests.

3. What is the risk of not verifying emails? Not verifying emails can lead to high bounce rates, outdated lists, and restricted accounts.

4. How does BounceBan verify catchall emails? BounceBan uses advanced AI algorithms to recognize patterns and enhance accuracy in verifying catchall emails.

5. Is BounceBan GDPR-compliant? Yes, BounceBan is GDPR-compliant and never sends actual emails to verify email addresses, unlike services like Scrubby.

BounceBan FAQs

1. How accurate is BounceBan in verifying catchall emails? BounceBan has a 97%+ accuracy rate in verifying catchall emails.

2. Can I verify emails in bulk using BounceBan? Yes, you can upload a CSV file to verify emails in bulk using BounceBan.

3. How long does it take to verify an email using BounceBan? BounceBan verification is fast and usually takes a few seconds. For a small share of catchall emails, it may take a few minutes.

4. Can I integrate BounceBan into my application? Yes, you can integrate BounceBan's API into your application using the API reference.

5. Is BounceBan free to use? BounceBan provides unlimited free single verifications, and you can upgrade to a paid plan for bulk verification and API integration.

tup.tsinghua.edu.cn FAQs

1. What is the domain of Tsinghua University? The domain of Tsinghua University is tup.tsinghua.edu.cn.

2. Is tup.tsinghua.edu.cn a catchall domain? Yes, tup.tsinghua.edu.cn is set to catchall, which means it accepts all emails sent to it, regardless of whether the recipient exists or not.

3. What is the most common email pattern at tup.tsinghua.edu.cn? The most common email pattern at tup.tsinghua.edu.cn is john.s@tup.tsinghua.edu.cn (25%).

4. What are the MX records for tup.tsinghua.edu.cn? The MX records for tup.tsinghua.edu.cn are mxbiz1.qq.com and mxbiz2.qq.com.

5. What industry does Tsinghua University belong to? Tsinghua University belongs to the education industry.

6. What is the address of Tsinghua University? The address of Tsinghua University is not publicly available.

7. How many email patterns are there at tup.tsinghua.edu.cn? There are four common email patterns at tup.tsinghua.edu.cn: john.s@tup.tsinghua.edu.cn (25%), john.smith@tup.tsinghua.edu.cn (24%), smithj@tup.tsinghua.edu.cn (11%), and john.s@tup.tsinghua.edu.cn (5%).

8. Can I use BounceBan to verify emails at tup.tsinghua.edu.cn? Yes, BounceBan is the only service capable of reliably verifying catchall emails and emails behind Email Security Gateways, making it the ideal choice for verifying emails at tup.tsinghua.edu.cn.

9. Are there any other services that can verify emails at tup.tsinghua.edu.cn? No, other services like Emailable, NeverBounce, ZeroBounce, DeBounce, SendGrid, Snov, RocketReach, and Hunter are unable to verify catchall emails at tup.tsinghua.edu.cn.

10. How does BounceBan verify emails at tup.tsinghua.edu.cn? BounceBan uses advanced AI algorithms to recognize patterns and enhance accuracy in verifying emails at tup.tsinghua.edu.cn.

By following this guide, you can accurately verify emails at tup.tsinghua.edu.cn using BounceBan and maintain a healthy email list. Remember to always verify your emails to prevent bounces, ensure deliverability, and maintain a good sending reputation.