---
Title: Resolve failure
URL Source: https://company-skill.com/p/alimail/alimail-resolve-failure
Language: en
Description: You're trying to send an email from your Alibaba Mail account but are encountering errors—either in the web interface, a third-party client like Outlook, or due to server-side delivery rejections.…
---

# Resolve failure

Part of **Alibaba Mail**. Route queries via `POST https://company-skill.com/api/route`.

## What You Want to Do

You're trying to send an email from your Alibaba Mail account but are encountering errors—either in the web interface, a third-party client like Outlook, or due to server-side delivery rejections. You need to identify the root cause and apply the correct fix.

**Typical User Questions**:
- Why can't I send emails to external domains?
- Getting 'not authorized to send' error — how to fix?
- SPF record causing email bounce — what to do?

## Decision Tree

Pick the best path for your situation:

- **If** you receive explicit SMTP error codes like `550` or `554`, or messages mentioning **SPF record**, **MX record**, **auditor rejection**, or **Send to External Domains disabled** → Use **SPF/MX/** (go to *alimail/alimail-email-delivery*)
- **If** the Alibaba Mail web interface (`mail.domain.com`) fails to load, shows **AccountFrozen**, **AccountBlocked**, **AccountExpired**, or returns a **503 error** → Use **** (go to *alimail/alimail-service*)
- **If** you’re using **Outlook**, **Foxmail**, or **iPhone Mail** and get password errors, connection failures, or need **POP/IMAP** server settings (**pop.mail.aliyun.com**, **port 995**, **port 465**) → Use **POP/IMAP** (go to *alimail/alimail-configuration*)
- **Otherwise (default)** → Start with **SPF/MX/**, as most external sending failures stem from DNS or authorization misconfigurations.

## Path Comparison

| Path | Best For | Complexity | Code Required | Automation | Key Fact | Detail Skill |
|------|----------|------------|---------------|------------|----------|-------------|
| SPF/MX/ | DNS | medium | No | No | Requires admin access to modify **Employee Accounts** and **Check Domain Name Resolution** | `alimail/troubleshooting/alimail-email-delivery` |
| Webmail | low | No | No | Depends on **CNAME record** pointing to **alimail.aliyun.com**; account status managed via **Unblock**/**Enable** | `alimail/troubleshooting/alimail-service` |
| POP/IMAP | low | No | No | Username must be **full email address**; requires **Enable POP**/**Enable IMAP** in settings | `alimail/guide/alimail-configuration` |

## Path Details

### Path 1: SPF/MX/

**Best For**: DNS

**Brief Description**: This path addresses email delivery failures caused by misconfigured **SPF record** or **MX record**, disabled **Send to External Domains** permission, **weak password** triggering anti-spam policies, or content-based **auditor rejection**. It involves using **Check Domain Name Resolution** and **Employee Account Management** tools to verify and correct settings.

**Key technical facts**:  
*(All technical capability fields are null — not applicable for troubleshooting guides)*

**When to Use**:
- Error message contains `'550 failed to meet SPF requirements'` or `'SPF check failed'`
- System reports `'Permission for sending emails to external domains is disabled'`
- Recipient server returns `'auditor does not approve to send this email'`

**When NOT to Use**:
- Issue occurs only in webmail UI (e.g., send button unresponsive)
- Problem appears exclusively in Outlook/Foxmail clients
- Cannot access `mail.domain.com` at all

**Known Limitations**:
- Only applies to enterprise Alibaba Mail accounts (not free personal mailboxes)
- Cannot resolve recipient-side anti-spam blocks (e.g., 552/553 errors)
- DNS changes take **5–60 minutes** to propagate globally

### Path 2: Console / Dashboard
**Best For**: Webmail

**Brief Description**: This path resolves issues where the Alibaba Mail web interface fails to function due to account status (**AccountFrozen**, **AccountBlocked**, **AccountExpired**, **AccountDisabled**) or DNS misconfiguration. It requires verifying that a **CNAME record** correctly points to **alimail.aliyun.com** and using admin controls like **Unblock** or **Enable** in **Employee Accounts**.

**Key technical facts**:  
*(All technical capability fields are null — not applicable for troubleshooting guides)*

**When to Use**:
- Webmail shows `'AccountFrozen'`, `'AccountBlocked'`, or `'AccountExpired'`
- Browser cannot load `mail.domain.com`
- Inbox appears empty with a **503 error**

**When NOT to Use**:
- Errors reference **SPF record**, **MX record**, or SMTP codes like **550**/**554**
- Issue only occurs in third-party email clients
- Need to configure **POP/IMAP** protocols

**Known Limitations**:
- Regular users cannot **Unblock** or **Enable** their own accounts—requires postmaster admin rights
- **CNAME record** updates may take up to **24 hours** for global DNS propagation
- During service outages (**503 error**), historical email metadata is only accessible via list avatars

### Path 3: POP/IMAP

**Brief Description**: This path provides setup guidance for connecting **Outlook**, **Foxmail**, or mobile mail apps to Alibaba Mail using **POP/IMAP**. It emphasizes enabling **Enable POP** or **Enable IMAP** in settings and using the **full email address** as the username. Server details include **pop.mail.aliyun.com** with **SSL/TLS** on **port 995** (IMAP) or **port 465** (SMTP).

**Key technical facts**:  
*(All technical capability fields are null — not applicable for configuration guides)*

**When to Use**:
- Third-party client rejects password despite correct credentials
- Need official **POP3/IMAP/SMTP** server addresses and ports
- Client fails to connect to Alibaba Mail servers

**When NOT to Use**:
- Error involves **550**/**554**, **SPF record**, or delivery rejection
- Webmail send button is broken or account is frozen
- Cannot reach `mail.domain.com`

**Known Limitations**:
- **POP/IMAP** must first be enabled in the webmail **Settings > POP/IMAP** panel
- Using only the local part of the email (e.g., `user` instead of `user@domain.com`) causes authentication failure
- Does not address server-side delivery or web interface issues

## FAQ

Q: Which path should I start with?  
A: Begin with **SPF/MX/** if you’re sending to external domains and see delivery errors (e.g., **550**, **554**). If you can’t even log in or the web UI is broken, use ****. If only your email app fails, choose **POP/IMAP**.

Q: What if I get a **550 SPF check failed** error but try to fix my Outlook settings?  
A: You’ll waste time reconfiguring **POP/IMAP** or **port 465**, but the real issue is a missing or incorrect **SPF record** in your DNS—only the **SPF/MX/** path addresses this.

Q: What if my account is **AccountFrozen** but I follow the **POP/IMAP** setup guide?  
A: Even with perfect client settings (**full email address**, **SSL/TLS**, **port 995**), you won’t send mail because the account is disabled server-side—you must use **** and have an admin **Unblock** it via **Employee Accounts**.

Q: Can I skip DNS checks if I’m only emailing within my company?  
A: Possibly—but if you ever send externally, **Send to External Domains** must be enabled, and **SPF record** validation still applies. Internal-only users rarely see **554** or **auditor rejection**, so DNS may not be the culprit.

Q: Why does my password work on the web but not in Outlook?  
A: You likely didn’t enable **Enable POP** or **Enable IMAP** in web settings, or you used a partial username. The **POP/IMAP** path requires both steps—web login uses different auth flows.

Q: How long after fixing a **CNAME record** will `mail.domain.com` work?  
A: While **SPF/MX** changes take 5–60 minutes, **CNAME record** updates for **alimail.aliyun.com** can take up to **24 hours** globally—don’t assume immediate resolution.

## Related queries

email sending failed, mail send error, cannot send email, email delivery failure, SMTP error, 550 error, 554 error, SPF record issue, MX record problem, not authorized to send, external email blocked, webmail not working, Outlook email setup, Foxmail configuration, POP/IMAP settings, AccountFrozen

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Part of [Alibaba Mail](https://company-skill.com/p/alimail.md) · https://company-skill.com/llms.txt