35 Enterprise Mail · Complete Setup Guide
35 Enterprise Mail (also known as "Sanwu Hulian Enterprise Mail") is a cloud email system focused on enterprise collaboration, offering unlimited capacity and global mail delivery. Binding it to Laifaxin requires 2 steps:
| Step | Content | Required |
|---|---|---|
| 1. Add a Client Authorization Code | Generate one under "Client Protocol Settings" in the web UI | Yes |
| 2. Bind in Laifaxin | Server uses your own company domain + the authorization code | Yes |
→ When binding, fill the password field with the Client Authorization Code (not your 35 mail login password).
Other enterprise mailboxes have fixed server addresses (e.g. Tencent's imap.exmail.qq.com); 35 is different — server = imap. / smtp. prefix + your own company domain:
| Your mailbox domain | IMAP server | SMTP server |
|---|---|---|
laifa.xin | imap.laifa.xin | smtp.laifa.xin |
laifaxin.com | imap.laifaxin.com | smtp.laifaxin.com |
→ Your domain = whatever comes after the @ in your email.
1. Server Parameters
Prepend imap. / smtp. to your own mailbox domain:
| Protocol | Use | Server | SSL Port |
|---|---|---|---|
| IMAP | Receive | imap.{yourdomain} | 993 |
| SMTP | Send | smtp.{yourdomain} | 465 |
Encryption: SSL / TLS
Mailbox is sales@laifa.xin → domain is laifa.xin → server is imap.laifa.xin / smtp.laifa.xin.
2. Get the Client Authorization Code
Steps:
- Log in to the 35 Enterprise Mail web
- Click Settings in the top-right → Client Protocol Settings
- In the Third-Party Client Authorization Code area, click Add Authorization Code
- Enter an identifier name for the code (we suggest
Laifaxin) → copy the generated code immediately
Once you close the page, the code may no longer be fully viewable — paste it into Laifaxin right away, or save to a password manager first.
3. Bind in Laifaxin
Go to Laifaxin email account and add the 35 enterprise mailbox:
| Field | What to enter |
|---|---|
| Email address | Full enterprise email, e.g. yourname@yourcompany.com |
| Password | Paste the Client Authorization Code (NOT the login password!) |
| IMAP server | imap.{yourdomain} · Port 993 · SSL |
| SMTP server | smtp.{yourdomain} · Port 465 · SSL |
After filling in, click Verify:
Once verified, the mailbox status shows Normal — binding successful:
After binding, turn on mail sync + notifications (see Check New Emails).
Pitfall Summary
| Pitfall | Consequence | How to avoid |
|---|---|---|
Server entered as imap.35.com / imap.mail.35.com | Send/receive fails | 35 Enterprise Mail server is imap.yourowndomain, not 35's domain |
| Binding with the 35 mail login password | Authentication failed | Must use the Client Authorization Code, not the login password |
| Forgot to copy the code after generation | Code lost | Copy immediately after generation; if lost, regenerate under "Client Protocol Settings" |
imap.yourdomain doesn't resolve | Server unreachable | Domain DNS isn't configured — contact the IT / domain admin who enabled 35 mail |
| Port set to 25 / 143 | No encryption / blocked | Use SSL: IMAP 993 / SMTP 465 |
| Using enterprise mailbox for bulk sending | Company domain goes to spam, hurts the whole org | Use a quality channel for bulk; reserve the enterprise mailbox for 1-on-1 |
FAQ
Q1 · Why do send/receive servers use my own domain?
This is 35 Enterprise Mail's service model — the server address is bound to your enterprise domain, giving the mailbox service more brand independence and helping with mail delivery trust.
→ Others use fixed addresses like imap.exmail.qq.com; 35 uses imap.yourdomain.
Q2 · Which is "my domain"? How do I confirm?
Your domain = whatever comes after the @ in your email address.
| Your enterprise email | Domain | Server |
|---|---|---|
sales@laifa.xin | laifa.xin | imap.laifa.xin / smtp.laifa.xin |
tom@abc-trade.com | abc-trade.com | imap.abc-trade.com / smtp.abc-trade.com |
Q3 · What if imap.mydomain is unreachable / doesn't resolve?
imap.yourdomain works only when the domain DNS is correctly configured (set up by the IT / domain admin when 35 mail was enabled).
→ If unreachable or "server not found", DNS isn't set right — contact the person who originally enabled 35 mail (company IT or domain admin) to check the resolution.
Q4 · Can I use the same authorization code on multiple clients?
Technically yes, but not recommended. Best practice is one client, one code — generate an independent authorization code for each client / device:
- If a device is lost or a client retired, just revoke that one code
- Doesn't affect other devices
Q5 · What if I forget / lose the code?
Cannot be recovered, only delete and create a new one:
- Log in to mail.35.com → Settings → Client Protocol Settings
- Delete the old code entry
- Click Add Authorization Code to regenerate → re-bind in Laifaxin
Q6 · Is 35 Enterprise Mail suitable for foreign trade? How many emails per day?
Decent among Chinese enterprise mailboxes. 35 focuses on unlimited capacity + global delivery, has some footprint with domestic foreign trade teams, but overseas delivery rate doesn't match Google Workspace.
Warm-up strategy (don't run outreach at the cap):
| Stage | Daily send | Notes |
|---|---|---|
| Week 1 (newly bound) | Start at 50 | 5–10 min interval |
| Weeks 2–4 | 100–200 | Watch bounce rate (keep ≤ 3%) |
| Stable phase | Up to 300 | Bulk sends via quality channel |
Learning Suggestions
| Stage | Suggestion |
|---|---|
| Memorize the server rule | Server = imap. / smtp. + your own domain |
| Generate the authorization code | Client Protocol Settings → Add Authorization Code → copy |
| One client, one code + label it | Each client gets its own code with a clear name (e.g. Laifaxin / iPhone Mail) |
| DNS must resolve | imap.yourdomain must resolve — configured by IT / domain admin |
| Periodic cleanup | Periodically delete codes no longer in use |
| Use a quality channel for bulk | For mass sends, don't send directly from the enterprise mailbox — use the quality channel |
Related Features
| Topic | Link | Description |
|---|---|---|
| Enterprise Mailbox Overview | 200-qiyeyouxiang-enterprise-mailbox | Quick reference for 7 major enterprise mailboxes |
| Tencent Enterprise Mail | 205-tengxun-qiyeyouxiang-tencent-enterprise-mailbox | Another Chinese enterprise mailbox setup |
| Email Account Setup | email-account | Binding flow + error code troubleshooting |
| Check New Emails | check-new-emails | Turn on sync after binding |
| Bulk Sending | email-mass-sending | Use a quality channel for mass sends |
Scroll to the bottom of this page and scan the support WeChat QR code (in the footer) for 1-on-1 help — real-time during business hours, replied first thing the next morning otherwise.
About 35 Enterprise Mail
What is 35 Enterprise Mail?
35 Enterprise Mail (Sanwu Hulian Enterprise Mail) is an enterprise-grade cloud email system from Xiamen Sanwu Hulian Technology, focused on unlimited capacity and global mail delivery. Companies register with their own domain, and the admin assigns accounts to employees. Website: mail.35.com
Highlights:
| Highlight | Description |
|---|---|
| Domain-based server addresses | IMAP/SMTP servers = imap./smtp. + your company domain, strong brand independence |
| Unlimited capacity | No mailbox storage cap |
| Global delivery | Provides worldwide mail send/receive service |
| Client Authorization Code | Third-party clients log in with a dedicated code, not exposing the main password |
Is 35 Enterprise Mail suitable for foreign trade?
Suitable for teams that are mainly domestic-office with secondary foreign trade:
- Unlimited capacity, no worry about storage even with heavy mail
- Overseas delivery rate doesn't match Google Workspace — for Europe/US focus, prioritize an overseas enterprise mailbox
Foreign trade selection guidance:
- Europe/US focus → prefer Google Workspace
- Mainly domestic office, secondary foreign trade → 35 Enterprise Mail is workable
Why does 35's server use your own domain?
35 Enterprise Mail provides a brand-independent mailbox service to each enterprise customer — the server address follows your domain (imap.yourdomain) rather than using 35's domain uniformly.
| Dimension | 35 Enterprise Mail | Tencent / NetEase Enterprise Mail |
|---|---|---|
| Server address | imap.yourdomain (follows enterprise domain) | Fixed (imap.exmail.qq.com, etc.) |
| Brand independence | Strong | Standard |
| Prerequisite | Domain DNS resolution configured | None |
→ Remember when configuring: 35's server is always your own domain, don't enter 35.com.
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