在iPhone、iPod touch 或 iPad
的 Apple邮件(Mail)应用程序中打开新电子邮件时，您是否看到“此邮件尚未从服务器下载”错误？
iOS 和 iPadOS的“邮件(Mail)”中出现“此邮件尚未从服务器下载”错误可能有多种原因。例如，它可能是与邮件服务器的随机连接问题、与帐户设置方式的冲突或邮件(Mail)应用程序的损坏实例。
通过以下解决方案解决并修复iPhone 和 iPad 版
邮件(Mail)中的“此邮件尚未从服务器下载”错误。
首先尝试这些快速修复
对于 iPhone 和 iPad 上Mail(Mail)应用程序的“此邮件尚未从服务器下载”错误的
随机一次性实例，请尝试以下快速修复。
- 阅读另一封邮件：打开另一封电子邮件。这可能会使有问题的消息也随之下载。
- 删除(Delete)和恢复(Restore)：将电子邮件移入垃圾箱并恢复它也可以推动邮件(Mail)应用程序下载其内容。
- 转发(Forward)消息：尝试将电子邮件转发给其他人。然后，如果Mail要求下载邮件其余部分的权限，请点击是。
1.启用和禁用飞行模式(Airplane Mode)
打开和关闭飞行模式(Airplane Mode)可以解决阻止邮件(Mail)应用程序与电子邮件服务器通信的各种连接问题。
为此，请从 iOS 设备的右上角向下滑动以显示控制中心(Control Center)。然后，点击飞行模式(Airplane Mode)图标将其打开。等待(Wait)几秒钟，然后再次点击以将其关闭。
2.重启路由器(Router)或交换机网络(Switch Networks)
如果您在Wi-Fi网络上，重新启动路由器可以解决您的互联网连接的任何小故障。如果不可能，请尝试加入其他网络。您还可以从Wi-Fi切换到移动数据，反之亦然，并检查这是否会使问题消失。
3.强制关闭并重新打开邮件应用程序(Mail App)
强制退出并重新启动邮件(Mail)应用程序是解决“此邮件尚未从服务器下载”错误的另一个修复程序。为此，请从屏幕底部向上滑动以显示App Switcher。或者，如果您的 iPhone 有
主屏幕按钮，请双击主屏幕按钮。(Home)
然后，找到邮件(Mail)卡并将其拖动到屏幕顶部以将其从内存中强制退出。前往主屏幕(Home Screen)，然后重新启动邮件(Mail)应用程序。
4. 重启你的 iPhone 或 iPad
如果问题仍然存在，您必须重新启动 iPhone 或 iPad(restart your iPhone or iPad)。为此，请打开“设置”(Settings)应用并点击“General > Shutdown” 。然后，向右滑动电源(Power)图标，等待 30 秒，然后按住侧面(Side)按钮重新启动它。
5. 更新你的 iPhone 或 iPad
更新 iPhone 或 iPad 上的系统软件也会更新Mail，从而可能解决阻止应用程序下载您的电子邮件的任何潜在问题。要检查 iOS 更新，请打开“设置”(Settings)应用并点击“General > Software Update。
注意：如果设备已使用较旧的系统软件版本一段时间，您可能还会在主设置(Settings)菜单
顶部看到软件更新选项。(Software Update)
6.增加预览行(Preview Lines)数(Number)
考虑在默认情况下预览电子邮件时增加Mail显示的行数。(Mail)这可以通过强制应用程序缓存电子邮件的内容而不仅仅是消息头来帮助修复“此消息尚未从服务器下载”错误。
1. 打开 iPhone 上的设置(Settings)应用程序。然后，向下滚动并点击邮件(Mail)。
2. 点击预览。
3. 从 2 行切换到 5 行。
7.将电子邮件同步更改为无限制
您还可以尝试取消邮件帐户的同步限制，并检查是否有影响。但是，在您这样做之前，如果您的 iPhone 或 iPad 即将用完，您可能需要释放一些存储空间(free up some storage on your iPhone or iPad)。
1. 打开设置(Settings)应用程序并点击邮件(Mail)。
2. 点击账户。
3. 点击有问题的帐户并将Mail Days to Sync设置为 No Limit。
8. 使用Fetch 方法(Fetch Method)发送电子邮件(Email Delivery)
如果问题仍然存在，请将Mail应用程序接收您帐户的传入消息的方式从Push更改为 Fetch。要做到这一点：
1. 打开设置(Settings)应用程序并点击邮件(Mail)> 帐户。
2. 点击获取新数据(Fetch New Data)选项，选择您的电子邮件帐户，然后启用获取(Fetch)。
3.返回上一个屏幕并在“(Head)获取(Fetch)”部分下方设置获取计划（例如，每 15 或 30 分钟一次）。
注意：更快的获取计划可能会对iPhone 或 iPad 的电池寿命(battery life on your iPhone or iPad)产生不利影响。
9. 阻止其他客户端删除消息
如果您在另一台设备上使用通过POP(POP)（邮局协议(Post Office Protocol)）设置的电子邮件帐户，则必须将其电子邮件客户端配置为在下载邮件后停止删除邮件。例如，这是在Mac上的(Mac)邮件(Mail)应用程序中执行此操作的方法。
1.在您的Mac上打开(Mac)邮件(Mail)应用程序。然后，选择菜单栏上
Apple标志旁边的邮件，然后选择首选项。(Mail)
2. 切换到邮件首选项(Mail Preferences)窗口上的帐户(Accounts)选项卡。然后，选择有问题的帐户，并确保“检索消息后从服务器中删除副本”选项处于非活动状态。
10.删除帐户(Delete Account)并重新添加(Re-add)到邮件
解决 iOS 和 iPadOS邮件(Mail)中“此邮件尚未从服务器下载(Been Downloaded)”问题的另一种方法是从头开始删除和设置帐户。
警告：如果电子邮件帐户是使用POP(POP)服务器设置设置的，并且您的 iPhone 或 iPad 是唯一接收您的电子邮件的设备，请
跳过此修复。
1. 打开设置(Settings)应用程序并点击邮件(Mail)> 帐户。
2. 选择有问题的帐户并点击删除(Delete)。然后，在确认弹出窗口中点击从我的 iPhone 中
删除。(Delete)
3.Tap Add Account >其他并手动输入您的电子邮件帐户详细信息。如果给定选项，请选择 IMAP(Select IMAP)（Internet 消息访问协议(Internet Message Access Protocol)）而不是POP ；请与您的电子邮件提供商联系以获取服务器地址。
如果您使用Microsoft Exchange或Google 帐户，请使用“(Google Account)添加帐户(Add Account)”屏幕中
的预设选项来添加您的电子邮件帐户。
11.卸载并重新安装邮件应用程序(Mail App)
在 iPhone 或 iPad 上卸载并重新安装Mail，以解决应用程序的任何损坏问题。与卸载应用程序不同，卸载只会删除应用程序数据，同时保持下载的电子邮件和其他形式的数据完好无损。
1.在您的 iPhone 或 iPad 上
打开设置应用程序。(Settings)
2.Tap General > iPhone/iPad 存储。
3. 点击邮件。
4.点击 Offload App(Tap Offload App)，然后再次点击 Offload App(Offload App)进行确认。
5. 点击重新安装应用程序(Reinstall App)。或者，在App Store中搜索邮件(Mail)并点击下载(Download)。
12.恢复出厂设置您的网络设置(Reset Your Network Settings)
如果上述修复均无济于事，请尝试重置 iPhone 或 iPad 上的网络设置。这可以帮助解决阻止Mail(Mail)应用程序下载消息
的潜在网络相关问题。
1. 打开设置(Settings)应用程序并点击General > Transfer或重置(Reset)iPhone >重置(Reset)。
2.点击重置网络设置(Tap Reset Network Settings)并输入您的设备密码或屏幕时间(Time)密码。
3.点击重置网络设置(Tap Reset Network Settings)进行确认。
或者，您可能需要考虑为您的 iPhone 或 iPad 执行所有设置重置。这可以解决干扰Mail工作方式的其他冲突。点击(Tap Reset All Settings)上述步骤中的重置所有设置以启动所有设置重置。
13.切换到专用电子邮件客户端(Dedicated Email Client)
如果您尝试对 iPhone 和 iPad 上的“此邮件尚未从服务器下载(Been Downloaded)”进行故障排除，请考虑从您的电子邮件提供商处切换到专用的第三方客户端应用程序。例如，如果您使用 Gmail 帐户，请使用 Gmail，或者使用Microsoft (Gmail)Outlook(Microsoft Outlook) for Microsoft Exchange 帐户。
13 Ways to Fix “This Message Has Not Been Downloaded From the Server” on iPhone and iPad
Do you see a “This messаge has nоt been downloaded from the server” error while opеning nеw emails in Apрle’s Mail app for iPhone, iPod touch, or iPad?
The “This message has not been downloaded from the server” error in Mail for iOS and iPadOS can show up for several reasons. For example, it could be a random connectivity issue with the mail servers, a conflict with how the account’s been set up, or a corrupt instance of the Mail app.
Work your way through the following solutions to troubleshoot and fix the “This message has not been downloaded from the server” error in Mail for iPhone and iPad.
Try These Quick Fixes First
Try the following quick fixes for random one-off instances of the Mail app’s “This message has not been downloaded from the server” error on the iPhone and iPad.
- Read Another Message: Open another email. That just might make the problematic message download alongside it as well.
- Delete and Restore: Moving an email into the trash and restoring it can also nudge the Mail app into downloading its contents.
- Forward Message: Attempt to forward the email to someone else. Then, tap Yes if Mail asks for permission to download the rest of the message.
1. Enable and Disable Airplane Mode
Turning Airplane Mode on and off can resolve various connectivity issues preventing the Mail app from communicating with the email servers.
To do that, swipe down from the top-right of your iOS device to reveal the Control Center. Then, tap the Airplane Mode icon to turn it on. Wait for several seconds and tap it again to turn it off.
2. Restart Router or Switch Networks
Restarting the router can resolve any minor glitches with your internet connection if you’re on a Wi-Fi network. Try joining a different network if that’s not possible. You can also switch from Wi-Fi to mobile data or vice-versa and check if that makes the problem disappear.
3. Force-Close and Re-open Mail App
Force-quitting and relaunching the Mail app is another fix to resolve the “This message has not been downloaded from the server” error. To do that, swipe up from the bottom of the screen to reveal the App Switcher. Or, double-click the Home button if your iPhone has one.
Then, locate and drag the Mail card to the top of the screen to force-quit it from memory. Head to the Home Screen and relaunch the Mail app after that.
4. Restart Your iPhone or iPad
If the issue persists, you must restart your iPhone or iPad. To do that, open the Settings app and tap General > Shutdown. Then, swipe the Power icon to the right, wait for 30 seconds, and hold down the Side button to reboot it.
5. Update Your iPhone or iPad
Updating the system software on your iPhone or iPad also updates Mail, potentially resolving any underlying issues stopping the application from downloading your email. To check for iOS updates, open the Settings app and tap General > Software Update.
Note: If the device has been on an older system software version for a while, you may also see the Software Update option at the top of the main Settings menu.
6. Increase the Number of Preview Lines
Consider increasing the number of lines Mail displays while previewing email messages by default. That could help fix the “This message has not been downloaded from the server” error by forcing the app to cache the contents of an email and not just the message header.
1. Open the Settings app on your iPhone. Then, scroll down and tap Mail.
2. Tap Preview.
3. Switch from 2 Lines to 5 Lines.
7. Change Email Sync to No Limit
You can also try lifting the mail account’s sync limit and check if that makes a difference. However, before you do that, you may want to free up some storage on your iPhone or iPad if you’re close to running out.
1. Open the Settings app and tap Mail.
2. Tap Accounts.
3. Tap the account in question and set Mail Days to Sync to No Limit.
8. Use the Fetch Method for Email Delivery
If the issue persists, change how the Mail app receives incoming messages for your account from Push to Fetch. To do that:
1. Open the Settings app and tap Mail > Accounts.
2. Tap the Fetch New Data option, pick your email account, and enable Fetch.
3. Head back to the previous screen and set up your fetch schedule—e.g., every 15 or 30 minutes—underneath the Fetch section.
Note: A faster fetch schedule can adversely impact the battery life on your iPhone or iPad.
9. Stop Other Clients From Deleting Message
If you use an email account set up with the POP (Post Office Protocol) on another device, you must configure its email client to stop deleting messages after downloading them. For example, here’s how to do that in the Mail app on Mac.
1. Open the Mail app on your Mac. Then, select Mail next to the Apple logo on the menu bar and choose Preferences.
2. Switch to the Accounts tab on the Mail Preferences window. Then, select the account in question, and ensure that the “Remove copy from server after retrieving a message” option is inactive.
10. Delete Account and Re-add to Mail
Another way to fix the “This Message Has Not Been Downloaded From the Server” issue in Mail for iOS and iPadOS is to remove and set up the account from scratch.
Warning: Skip this fix if the email account is set up using POP server settings and your iPhone or iPad is the only device that receives your email.
1. Open the Settings app and tap Mail > Accounts.
2. Select the account in question and tap Delete. Then, tap Delete from My iPhone on the confirmation pop-up.
3. Tap Add Account > Other and manually enter your email account details. Select IMAP (Internet Message Access Protocol) over POP if given the option; check with your email provider for the server addresses.
If you use a Microsoft Exchange or Google Account, use the pre-set options within the Add Account screen to add your email accounts.
11. Offload and Reinstall the Mail App
Offload and reinstall Mail on your iPhone or iPad to resolve any corruption issues with the app. Unlike uninstalling an app, offloading removes the app data only while keeping downloaded emails and other forms of data intact.
1. Open the Settings app on your iPhone or iPad.
2. Tap General > iPhone/iPad Storage.
3. Tap Mail.
4. Tap Offload App, then the Offload App again to confirm.
5. Tap Reinstall App. Or, search for Mail on the App Store and tap Download.
12. Factory Reset Your Network Settings
If none of the fixes above help, try resetting the network settings on your iPhone or iPad. That can help resolve underlying network-related issues preventing the Mail app from downloading messages.
1. Open the Settings app and tap General > Transfer or Reset iPhone > Reset.
2. Tap Reset Network Settings and enter your device passcode or Screen Time passcode.
3. Tap Reset Network Settings to confirm.
Optionally, you may want to consider performing an all settings reset for your iPhone or iPad. That could resolve other conflicts that interfere with how Mail works. Tap Reset All Settings in the step above to initiate an all settings reset.
13. Switch to a Dedicated Email Client
If your attempts at troubleshooting the “This Message Has Not Been Downloaded From the Server” on iPhone and iPad fail, consider switching to the dedicated third-party client app from your email provider. For example, use Gmail if you use a Gmail account or Microsoft Outlook for Microsoft Exchange accounts.
