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Secure Attachment Policy

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  • Last reply by christ1

john65281
john65281
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I send a message with large attachments and get the error it exceeds the Secure Attachment Policy. What is that? How do I change it? I used config to edit the config file and increase the size allowed and changed the warning thing to false but nothing works. This just started with the most recent upgrade. 2nd Question: How revert to the older version of Thunderbird? Thanks

I send a message with large attachments and get the error it exceeds the Secure Attachment Policy. What is that? How do I change it? I used config to edit the config file and increase the size allowed and changed the warning thing to false but nothing works. This just started with the most recent upgrade. 2nd Question: How revert to the older version of Thunderbird? Thanks

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christ1
christ1
  • Top 25 Contributor
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What is the exact error message? Please post a screenshot. https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

My best guess is it's from your email provider's server. Your email provider may limit the max. allowed size for attachments. You can use other means for sending large files, e.g. FileLink. https://support.mozilla.org/kb/filelink-large-attachments