question

NicholasParry-5557 avatar image
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NicholasParry-5557 asked FaeryFu-MSFT commented

Outlook not working through 3rd party program (Ostendo) Is this a security issue causing these errors

This is the outlook message I receive when trying to send a purchase order through Ostendo the 3rd party program that we link to Outlook to send Purchasse orders out in a much more efficient way. I'm the only one that has this issue in the business. I recently started and this is one of the IT issues I'm getting.

Could this be a security issue where Windows is in part blocking the program or my outlook when it is sent through this 3rd party program?

Ostendo also uses a "virtual desktop" when in use - so it's similar to running 2 operating systems at the same time. We run outlook in both "desktops"
The computer I'm using is running on WIndows 10Pro 64-bit
with Kaspersky Office Security running also


FYI
I have hidden email address recipients in the error message as email address


Delivery has failed to these recipients or groups:
email address
Your message is larger than the size limit for messages. Please make it smaller and try sending it again.


Delivery has failed to these recipients or groups:
email address

Diagnostic information for administrators:
Generating server: ME3P282MB4016.AUSP282.PROD.OUTLOOK.COM
Remote Server returned '554-5.3.4 Content conversion limit(s) exceeded 554 5.3.4 STOREDRV.Submit.Exception:ConversionFailedException; Failed to process message due to a permanent exception with message [BeginDiagnosticData]ExceedsLimit ConversionFailedException: ExceedsLimit[EndDiagnosticData]'
Original message headers:
Received: from ME3P282MB4016.AUSP282.PROD.OUTLOOK.COM
([fe80::24ba:159f:c59c:d7ef]) by ME3P282MB4016.AUSP282.PROD.OUTLOOK.COM
([fe80::24ba:159f:c59c:d7ef%3]) with mapi id 15.20.5250.013; Thu, 12 May 2022
06:27:24 +0000
MIME-Version: 1.0
Content-Type: text/plain
Date: Thu, 12 May 2022 06:27:24 +0000
Message-ID:
<ME3P282MB401622B40DEFB4D59B7B3B7ABCCB9@ME3P282MB4016.AUSP282.PROD.OUTLOOK.COM>
Subject: Purchase Order 617070







And I also get this Error

Your message did not reach some or all of the intended recipients.

   Subject:    Purchase Order 617070
   Sent:    12/05/2022 4:27 PM

The following recipient(s) cannot be reached:

email 12/05/2022 4:27 PM
None of your email accounts could send to this recipient.


office-outlook-itpro
· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Also the attachments/messages are less then 1mb.

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1 Answer

FaeryFu-MSFT avatar image
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FaeryFu-MSFT answered FaeryFu-MSFT commented

Hi @NicholasParry-5557 ,

Welcome to our forum!

Your message is larger than the size limit for messages. Please make it smaller and try sending it again.

From the error report, this issue may occur due to the attachment limits. Generally, there are different attachment limits between mail providers, for example, if you are an Office 365 for business user, the default attachment size limits is 150MB for Outlook client, 35MB for Outlook Web App.

May I know which mailbox you are using? If you are using an Exchange account, please confirm that the attachment size with your Exchange Administrator.

If that attachment size is more than a limit as Microsoft defined, to workaround it, you may compress the file or upload the file/document to oneDrive then share the link in the email.

More information you can refer to in the link below: Send large files with Outlook


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· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @NicholasParry-5557
Thanks for your reply.
According to my search for the error report, it may occur due to the limits for message. But from your description, the attachment and message are not very large.
Could you provide more detailed information for better research:
1. Is it an Microsoft365 account?
2. In order to verify, how do you send email through 3rd-party program? There is a possibility that the size of the mail will become larger after it is sent through a third-party program.
3. Do other emails sent without third-party program have this problem?

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