Mozilla Thunderbird changes the extension of the attached file.
Hello. I faced a problem. When I receive or send an email using Mozilla Thunderbird, what happens is the last letter of my file extension is replaced with underscore. For example Instead of seeing document.docx file in attachment I see document.doc_. That happened as I think after updating to 78.6.0 Version. Before I had 68.12.1. If I roll back everything works fine. My OS is Windows 7 Pro x64.
Hello. I faced a problem. When I receive or send an email using Mozilla Thunderbird, what happens is the last letter of my file extension is replaced with underscore. For example Instead of seeing document.docx file in attachment I see document.doc_. That happened as I think after updating to 78.6.0 Version. Before I had 68.12.1. If I roll back everything works fine. My OS is Windows 7 Pro x64.
Chosen solution
Do you have Kaspersky? Its attachment filtering is known to cause this.
https://support.kaspersky.com/KS4MO365/1.2/en-US/177819.htm
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Chosen Solution
Do you have Kaspersky? Its attachment filtering is known to cause this.
Thank you so much, it solved my problem
sfhowes said
Do you have Kaspersky? Its attachment filtering is known to cause this. https://support.kaspersky.com/KS4MO365/1.2/en-US/177819.htm https://community.kaspersky.com/kaspersky-security-cloud-11/kaspersky-changing-attached-file-names-like-pdf-to-pd-apparently-due-to-filtering-attachments-merged-14062