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Error message: Connection to outgoing server was lost

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About 25% of the time when hit 'send' on an email I have written, I get this error message: "Sending of the message failed. The message could not be sent because the connection to outgoing server (SMTP) smtp.gmail.com was lost in the middle of the transaction. Try again."

What's perplexing is that the message does appear in my 'sent' folder and if I "try again", a duplicate email is sent. I have attached a copy of the error message and the settings on TB under the SMTP server.

I'm using TB 78.12.0. Thanks for your help.

About 25% of the time when hit 'send' on an email I have written, I get this error message: "Sending of the message failed. The message could not be sent because the connection to outgoing server (SMTP) smtp.gmail.com was lost in the middle of the transaction. Try again." What's perplexing is that the message does appear in my 'sent' folder and if I "try again", a duplicate email is sent. I have attached a copy of the error message and the settings on TB under the SMTP server. I'm using TB 78.12.0. Thanks for your help.
Attached screenshots

Chosen solution

Add the Root Directory, the one in AppData/Roaming.

I've never heard of W7 to W10 requiring a subscription fee. There could be one to receive updates to W7, which is otherwise at the end-of-life stage.

https://www.zdnet.com/article/heres-how-you-can-still-get-a-free-windows-10-upgrade/

I have a Core 2 Duo from 2006 that runs W10, initially with just 2 GB RAM, but now 4 GB.

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All Replies (7)

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What is your anti-virus software?

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I'm not sure. How would I figure that out?

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Okay, googled that and it appears I do not have one. See screenshot attached.

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For Windows 7, I would recommend MS Security Essentials, and after setup, add the TB profile folder as an Exclusion in the MS SE settings. The profile location is shown in Help/Troubleshooting, about:profiles. The error might also appear if you have a VPN. The smtp settings are correct.

Consider upgrading to W10, which in many cases can be done as a free upgrade.

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Thanks for the suggestions. I aded MS Security Essentials. Do I add the root directory folder, the local directory folder or both as an Exclusion in the MS SE settings.? I don't have a VPN . Although the upgrade to Windows 10 is 'free', when I discussed this with Microsoft a few months ago, they did indicate there would be a monthly subscription cost. Also, my PC is from 2013 and I'm afraid if I 'upgrade' to Windows 10, it will explode!  :-)

Thanks again.

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Chosen Solution

Add the Root Directory, the one in AppData/Roaming.

I've never heard of W7 to W10 requiring a subscription fee. There could be one to receive updates to W7, which is otherwise at the end-of-life stage.

https://www.zdnet.com/article/heres-how-you-can-still-get-a-free-windows-10-upgrade/

I have a Core 2 Duo from 2006 that runs W10, initially with just 2 GB RAM, but now 4 GB.

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I added that folder to the exception list.

As for MS 10, that's a long list of things to do, most of which I have *no* idea how to accomplish. I could probably bumble my way through it if I had 10-20 hours to spare to figure out how to get through all those steps. Perhaps I can find someone with more tech savvy to help me do it!

Thanks for your help.