Intermittantly not sending emails with attachments

Not open for further replies.


Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
My friend's Windows 7 computer running Outlook 2013 is intermittently not sending emails that have attachments. The emails remain in the Outbox. It seems to possibly be more prevalent when the attachment is above 1 MB.

When I see the email sitting in the Outbox, if I click Send/Receive, I get a message saying the connection to the server was interrupted, with a code that ends in 800CCCF I think. (The message only appears for about half a second then disappears).

Another computer that is on the same router, running Windows 7 and Outlook 2010, can send attachments without any problems when the first computer is having the failure.

I checked the internet connection by running speedtests, it seems ok other than the fact that the upload speed seems very high, 30Mbs.

The email is through GoDaddy pop, ISP is Cox.

Does it work in Safe mode? Are any non-Microsoft addins installed? Is there an antivirus scanner scanning outgoing mail?

- - - Updated - - -

Does it work in Safe mode? Are any non-Microsoft addins installed? Is there an antivirus scanner scanning outgoing mail?
Hi Diane,

I am just getting back to you on this because I was not sure if the fixes I did per your suggestions had solved the issue.
(Even though this is the same computer as the other post I did today about duplicate emails in Inbox, I suspect they may be different issues since she tells me the duplicates/triplicates only happened once or twice.)

I had previously disabled the following add ins on my friend's computer after reading your last post: icloud, iTunes, Norton AntiSpam. I also disabled Norton scan of outgoing email. But today she called and said messages stuck in outbox was happening again.

I logged in and saw an email stuck in her outbox, it had an 11 GB attachment. She uses godaddy, I checked and they allow up to 20 GB attachments, max per message of 30 GB. So she should be ok there.

I deleted the email, then I resent the same email with the same attachment. It went out fine. Then I sent it again and it went out ok.

I tried a third time and it got stuck in Outbox. Outlook also gave an error at that time:
0X800CCC0F Connection to server was interrupted

The 4th attempt went out ok.

The 5th attempt got stuck in outbox, same error message.

So it is an intermittent problem.

Any ideas?

Another email with just a 4 MB attachment is stuck in the Outbook, and giving the same error as above. So I guess the size of the other attachment was not really the issue.

This: 0X800CCC0F Connection to server was interrupted usually means there is a problem with the connection - godaddy could be dropping it, it could be a bad link between her computer and godaddy.

Does it work without issue in Safe mode? If so, then the problem is with something in outlook. (I know, it's hard to repro when it is intermittent.)

The crash could be related to this error.
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
Fozzie Bear Calendar Events created on iPhone have suddenly start sending invitations to attendees Using Outlook 2
D Prompt to prefix subject line whenever sending an email Outlook VBA and Custom Forms 3
P default font when sending email from browser Using Outlook 1
M Messages Intermittently Dont Arrive In Sent Items After Sending Successfully Using Outlook 4
O Outlook on Android: after sharing / sending a news article, draft remains open. Why? Using Outlook 1
P Sending email from outlook IMAP to GMAIL where embedded images are added as attachment Using Outlook 1
V Form data not sending for some users Outlook VBA and Custom Forms 2
L isn't there an OL add-on that flags addressee before sending Using Outlook 3
R Microsoft Outlook 2016 - Gmail not sending, asks for password for SMTP, tried different ports Using Outlook 23
A Flag Message for Follow Up after sending Outlook VBA and Custom Forms 1
D Sending email from Office 365 alias in Outlook Using Outlook 3
E Change sending account depending on Subjectline Outlook VBA and Custom Forms 0
L unblocking attachments before sending Office 365 Advanced Protection Using Outlook 0
B Outlook 2003 email sending & receiving suddenly stopped working Using Outlook 3
R Warn before sending message Outlook VBA and Custom Forms 4
HarvMan Hotmail - Sending email is undeliverable Using Outlook 4
A Sending contact vcards sends older version instead of updated version Using Outlook 4
M McAllister Outlook stops Sending/Receiving/Synching after disconnecting remote desktop session Using Outlook 2
D Adding Enterprise Exchange Email Account to Outlook Prevents Sending via Account Using accounts in Outlook 10
B When sending an email, I am showing 2 of my address's Using Outlook 1
M Auto expand Distribution List Before Sending Email Outlook VBA and Custom Forms 1
A Check for words in subject header before sending email Outlook VBA and Custom Forms 4
O Run macro automatically at sending an email Using Outlook 11
W Sending To Wrong Account Using Outlook 15
H Select Specific Account When Sending Email, Based on Current Folder Outlook VBA and Custom Forms 1
M Help sending email but removing signature via VBA Outlook VBA and Custom Forms 5
M MsgBox when not sending from specified account Outlook VBA and Custom Forms 2
A Script to fetch data from mails in restricted collection and sending them to excel Using Outlook 1
R Sending emails via Outlook XP, from Windows 10 File Explorer Using Outlook 1
L Creating drafts when I thought I was sending Using Outlook 1
C address book "when sending email" bug? Using Outlook 0
H Custom autoforwarding, sending mail through outlook office 365 Using Outlook 1
R Sending email copy (*.msg file) of sent email if subject line contains specific string. Outlook VBA and Custom Forms 1
C replace subject line generated by converting a word document to PDF and sending it to an email Using Outlook 8
A Sending Emails Through Outlook From Multiple Email Addresses Using Outlook 1
P Outlook 365 sending intermittently Using Outlook 0
C How to avoid sending mail to the wrong contact person Using Outlook 1
V iCloud Calendar invitations not sending Using Outlook 3
O Rules and Alerts for New Messages BEFORE sending Using Outlook 2
latitudeit Outlook for Android - Sending from an alias address Using Outlook 2
X Delay sending an email until the next working day (public holidays) Outlook VBA and Custom Forms 0
D Macro sending outlook template from Excel list Outlook VBA and Custom Forms 6
A How to get rid of "sending on behalf of" when sending from Outlook 2016 client Using Outlook 12
O Outlook 2013 Problems sending large mails Using Outlook 4
Diane Poremsky Automatically create a task when sending a message Using Outlook 0
P Categorise emails on sending - macro not working in Preview mode Using Outlook 1
Diane Poremsky Outlook is sending winmail.dat attachments Using Outlook 0
Diane Poremsky Select from a List of Subjects before Sending a Message Using Outlook 0
P Outlook 2010 sending safe senders email to junk box Using Outlook 8
Diane Poremsky To delay sending a message in Outlook Using Outlook 0

Similar threads