The remote certificate is invalid

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Posted on by subrata.bauri

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Dear all,

I have faced the following error message while trying to send SMTP mail from SMTP Server (smtp.gmail.com).

Microsoft Dynamics NAV

The SMTP mail system returned the following error: "The remote certificate is invalid according to the validation procedure.".

This is happening in the PC where NAV Server is installed.

How to solve it ?

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Inge M. Bruvik 32,748 Super User 2024 Season 1 on at

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RE: The remote certificate is invalid

Make sure you have configured your Gmail for 3. party access.

support.google.com/.../3466521
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Amit Baru 3,025 on at

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RE: The remote certificate is invalid

Hi,

Pls check your Certificate date & expiration

Regards

Amit Sharma
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Brammah 5 on at

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RE: The remote certificate is invalid

This can happen when you have installed an antivirus on your server and the "Scan Outbound Emails" on your basic protection is activated. Just uncheck it and you should be fine.
Ngotie 20 on at

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RE: The remote certificate is invalid

Turn off the your anti-virus 'Mail Shield' and in your gmail account turn on the 'Allow less Secure apps'.
subrata.bauri 1,112 on at

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RE: The remote certificate is invalid

Hi,

I'm using codeunit 400 (NAV2013R2) & able to send emails from smtp.gmail.com server in my Test Machine but can not do the same in Live Server.

While trying to send emails from Live Server, it gives the error message like "The SMTP mail system returned the following error: "The remote certificate is invalid according to the validation procedure.".

As per error message I have checked the Certificate & it's found expired. So I've created a new one but still facing the same error message.
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Community Member Microsoft Employee on at

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RE: The remote certificate is invalid

Try sending mail using 397 Mail Codeunit (Using Outlook).

Gmail may not allow you to send the mail via NAV.
subrata.bauri 1,112 on at

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RE: The remote certificate is invalid

Q. Which certificate?

A. Server certificate
subrata.bauri 1,112 on at

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RE: The remote certificate is invalid

I've created a new certificate, but still the same error message is coming.
Community Member Microsoft Employee on at

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RE: The remote certificate is invalid

Which certificate?
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Nareshwar Raju Vane... 5,596 on at

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RE: The remote certificate is invalid

Hi,

Please let us know if it is resolved or facing any more issues.

Regards,

Naresh.