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Email stuck in Outlook 2007 Outbox [COMPREHENSIVE GUIDE]

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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Outlookis one of the most popularemail clientsonWindows 10, and while some users use the latest version, others prefer the older one. Users reported that their messages are stuck inOutboxinOutlook2007, so let’s see how to fix this problem.

What can I do if my message is stuck inOutlook2007’soutbox?The quickest solution is to delete the messages from theOutboxfolder. In many cases, moving or deleting theemailssolved the issue.

If that’s not the case, then disable/uninstallOutlook‘s add-ons or use MFCMAPI tool.

For more info on how to do that, check the steps below.

Steps to fix a stuck email in Outlook 2007’s outbox:

Solution 1 – Delete the messages from the Outbox folder

According to users, thiserrorwill prevent you from sendingemailsbecause they will get stuck in theOutboxfolder, but you can fix this problem simply by deleting messages from theOutboxfolder. To do that, follow these steps:

After performing these steps, the problem with stuckemailsshould be fixed. Keep in mind that this is just a workaround, but it should fix any problems with stuckemails.

Solution 2 – Remove large attachments

Large attachments are usually one of the main reasons whyemailsget stuck inOutboxfolder, but you can fix this this problem by resizing or removing the attachment. To do that, follow these steps:

If you have problem with sending attachments, you might want to consider using a cloud storage such asDropboxorOneDriveto upload your attachment and include the link in youremailmessage.

Solution 3 – Disable / uninstall Outlook add-ons

According to users, this problem can appear if you open a certainemailmessage while it’s located in theOutboxfolder. This message will be marked as read and it won’t be send.

One cause for this problem areOutlookadd-ons, but you can easily fix this problem by disabling or removing the installed add-ons. If you rely heavily on those add-ons, you can simply move theemailmessage to the Drafts folder and try to send it again.

You can also disable some add-on by changing the registry. Simply navigate to

and

key and changeLoadBehaviorto 0 to disable a certain add-on.

Solution 4 – Check if your password is correct

Sometimes this problem can appear if you change youremailpassword. For example, if you usewebmailwithOutlookand you change theemailpassword, you’ll have to enter the new password inOutlookas well.

To change youraccount settingsinOutlook, do the following:

-READ ALSO:6 best password sync software to try

Solution 5 – Check if the authentication is working properly

If the authentication with theemailserver doesn’t work properly, you might getemailmessages stuck in theOutboxfolder. To fix this problem, you need to check your authentication settings by following these steps:

Gmailhas special settings, and if you use Gmail POP withOutlookyou need to set port995forPOP3and port465forSMTP.Also you need to checkThis server requires an encrypted connection (SSL)option.

For GmailIMAPaccount use port993forPOP3and port587forSMTP.Also be sure to turn on SSL option. For more details on how to configureOutlook, we suggest that you check youremailprovider for detailed instructions.

Solution 6 – Check if both Outlook and the mail server are online

Outlook comes with a useful feature called Offline Mode that allows you to view youremailsoffline, but you won’t be able to sendemailsif this feature is turned on, so make sure that you disable it.

You can disable Offline Mode simply by going to theSend / Receivetab and clicking theWork Offlinebutton.

If Offline Mode isn’t turned on but you still have this problem, it’s possible that the mail server has some issues. In that case you can only wait until theadministratorfixes the problem.

Solution 7 – Set the default account

This problem can occur if you don’t have a default account assigned. To assign a defaultemailaccount, do the following:

Solution 8 – Close all Outlook processes

This problem can occur if another application is usingOutlookdata file, and in order to fix this problem, you need to startTask Managerand end allOutlook-related processes.

To do that, simply pressCtrl + Shift + Escto startTask Manager. WhenTask Manageropens, locate and close any processes that are related toOutlook. After you do that, check if the problem is resolved.

Solution 9 – Repair Outlook data file

Sometimesemailscan get stuck in Outbox folder ifOutlookdata file is damaged. To fix this problem, you can use Inbox Repair Tool to repair the data file.

Simply go to theOutlookinstallation directory and run theSCANPST.exetool. Select your data file, click theStartbutton and wait for the scan to repair your data file.

Solution 10 – Disable your antivirus software

Many antivirus tools have an option that scans all incoming or outgoingemails, and sometimes this option can interfere withOutlook. To fix this problem, you need to open your antivirus application and turn offemailscanning option.

If that doesn’t work, you might want to disable yourantivirus software, or remove it and switch to a different antivirus program.

Solution 11 – Delete all Outlook files from AppData folder

Before you start deleting these files, we strongly suggest that youcreate a backupjust in case. If anything goes wrong, simply use your backup to restore the deleted files. To deleteOutlookfiles from AppData folder, follow these steps:

-READ ALSO:Outlook emails have disappeared: 9 solutions to get them back

Solution 12 – Turn off Cached Exchange Mode

Sometimes Cached Exchange Mode can interfere withOutlook2007 and causeemailmessages to get stuck inOutboxfolder. You can easily fix this problem simply by disabling Cached Exchange Mode by following these steps:

Solution 13 – Start Outlook in Safe Mode

Outlook add-ons can interfere withemailsending process and causeemailmessages to get stuck inOutbox. Fortunately, you can fix this problem by startingOutlookin Safe Mode. To do that follow these steps:

RunningOutlookin Safe Mode will disable all add-ons and resetOutlookto default settings, so you should be able to send youremailswithout any problems.

Solution 14 – Create a new pst file

By creating a new pst file you’ll forceOutlookto create a newOutboxfolder, and that can sometimes fix this problem. To create a new pst file, do the following:

Solution 15 – Use MFCMAPI tool

This is a third-party tool, but it can be used to fix this type of problem. Keep in mind that this tool can cause damage to your mailbox, so be sure to create a backup and be extra cautious while using it.

To fix this problem with MFCMAPI, follow these steps:

Solution 16 – Enter the email address manually

According to users, thiserrorappears if you select an email address from your contact list or if you select an email address from the list of suggestions. To prevent this problem, they are suggesting to manually enter the email address to theTofield while sendingemail.

Entering the address manually allows you to sendemails, so be sure to try that out. Keep in mind that you’ll have to manually enter theemailaddress every time you want to send anemail.

Solution 17 – Create a new Contacts folder

Users reported thatemailscan get stuck inOutboxfolder due to corrupted contact list. To fix this problem, you need to create anew Contacts folderand copy all your contacts to it. To do that, follow these steps:

After all your contacts are updated, the issue with stuckemailswill be fixed.

Solution 18 – Disable your Internet connection

Few users reported that you can fix this issue simply by disabling your Internet connection. To do that, follow these simple steps:

If you don’t want to use Network Connections, you can fix this problem simply by unplugging yourEthernet cable, moving or deleteemailsfromOutboxfolder and reconnecting the Ethernet cable again.

Solution 19 – Check your router configuration

Sometimes these problems can appear if you change your router’sfirewall settings. To fix this problem, you need to change yourfirewallsettings or reset yourrouter.

To reset your router check its instruction manual for detailed instructions.

Solution 20 – Disable IP CEF feature on your router

Users reported that Cisco routers have issues withOutlook 2007, and if you want to fix the problem withemailsstuck in Outbox, open your router configuration and turn offCisco Express Forwardingfeature.

After turning this feature off, the problem should be resolved.

Solution 21 – Delete the .ost file

Sometimes this problem can occur due to a corrupted .ost file, and to fix this problem you need to remove that .ost file. To do that, follow these steps:

-READ ALSO:Fix: change offline Outlook Data File (.ost) location in Microsoft Outlook on Windows 10

Solution 22 – Create a new email profile and paste the old .pst file to it

Few users reported that they fixed this problem by creating a newemailprofile by going toControl Panel > Mail. After doing that, locate the pst file of the new profile and rename it. Then copy the pst file from the old profile and the problem with stuckemailsshould be fixed.

Solution 23 – Uninstall PGP

Users reported that this problem was caused by PGP 8.1, and according to them, you can easily fix this problem by removing PGP. After removing the PGP, the problem withemailsstuck inOutboxwill be resolved.

Solution 24 – Click the Send / Receive button

To fix this problem sometimes you just need to clickSend / Receivebutton. According to users, sometimes there can be a certain bug that prevents messages from sending, but you should be able to fix this problem simply by clicking the Send / Receive button.

Solution 25 – Change the SMTP port

Few users reported that they fixed this problem simply by changingSMTPport from25to26.Sometimes your ISP can block certain ports, but after changing the SMTP port to 26, the problem was fixed. For more information on how to change your ports, check theSolution 5.

Some users are also suggesting to increase theServer Timeoutto7 minutes and 30 seconds, so you should try doing that as well.

Solution 26 – Create a new profile

According to users, you can fix this problem easily by creating a newOutlookprofile. If you want to keep all your autocomplete entries, be sure to rename the NK2 file. After creating a new profile, the problem should be fixed.

Solution 27 – Edit your registry

Users reported that you can fix this problem by changing few values in your registry. Before modifying the registry, be sure to create a backup in case anything goes wrong. To edit your registry, do the following:

key in the left panel.

After making these changes, startOutlookagain and check if this problem is resolved.

Solution 28 – Check the Send immediately option

Users reported that theiremailsare getting stuck inOutboxfolder when they send them using other Office tools. To fix this problem, you need to enable one option inOutlook. To do that, follow these steps:

Specific case – Message stuck in Outbox Outlook 2007 cached mode

Solution 1 – Cancel the Send / Receive process

Few users reported that you can fix this problem by starting the Send / Receive process and cancelling it. To do that, simply click the Send / Receive button.

Send / Receive status should appear at the bottom of the screen. Click the arrow next to it and click onCancel Send / Receive. By doing that, all messages fromOutboxfolder should be removed.

Solution 2 – Restart Microsoft Exchange Active Directory Topology service

This is just a temporary solution, and you’ll have to repeat it every time thiserrorappears. To restart Microsoft Exchange Active Directory Topology service, do the following:

After this service restarts, openOutlookand check if the problem is fixed.

Specific case – Message stuck in Outbox Outlook 2007 POP3

Solution – Copy allemailsfrom the problematic pst

Few users reported that they fixed this issue simply by copying allemailsfrom the problematic pst file to a new pst. After you do that, remove the old pst file along with the problematicOutboxand the problem should be fixed.

Message stuck inOutlook 2007Outboxcan be a big problem and prevent you from sendingemails, but as you can see, this problem can be easily resolved by using one of our solutions.

If you have any more questions aboutOutlook2007, feel free to leave them in the comments section below and we’ll take a look.

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Milan Stanojevic

Windows Toubleshooting Expert

Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He’s a PC enthusiast and he spends most of his time learning about computers and technology.

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.

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Milan Stanojevic

Windows Toubleshooting Expert

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s specialized in Windows errors & software issues.

Email stuck in Outlook 2007 Outbox [COMPREHENSIVE GUIDE]#

Steps to fix a stuck email in Outlook 2007’s outbox:#

Solution 1 – Delete the messages from the Outbox folder#

Solution 2 – Remove large attachments#

Solution 3 – Disable / uninstall Outlook add-ons#

Solution 4 – Check if your password is correct#

Solution 5 – Check if the authentication is working properly#

Solution 6 – Check if both Outlook and the mail server are online#

Solution 7 – Set the default account#

Solution 8 – Close all Outlook processes#

Solution 9 – Repair Outlook data file#

Solution 10 – Disable your antivirus software#

Solution 11 – Delete all Outlook files from AppData folder#

Solution 12 – Turn off Cached Exchange Mode#

Solution 13 – Start Outlook in Safe Mode#

Solution 14 – Create a new pst file#

Solution 15 – Use MFCMAPI tool#

Solution 16 – Enter the email address manually#

Solution 17 – Create a new Contacts folder#

Solution 18 – Disable your Internet connection#

Solution 19 – Check your router configuration#

Solution 20 – Disable IP CEF feature on your router#

Solution 21 – Delete the .ost file#

Solution 22 – Create a new email profile and paste the old .pst file to it#

Solution 23 – Uninstall PGP#

Solution 24 – Click the Send / Receive button#

Solution 25 – Change the SMTP port#

Solution 26 – Create a new profile#

Solution 27 – Edit your registry#

Solution 28 – Check the Send immediately option#

Specific case – Message stuck in Outbox Outlook 2007 cached mode#

Specific case – Message stuck in Outbox Outlook 2007 POP3#