Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Thunderbird is marking some emails as ***SPAM*** and removing the ".PDF" file extension from attachments but these emails are not spam. How to fix this?

  • 2 replies
  • 3 have this problem
  • 42 views
  • Last reply by JBB1

JBB1
JBB1
more options

Thunderbird is marking some emails as ***SPAM*** and removing the ".PDF" file extension from attachments but these emails are not spam. To be clear these emails remain in the inbox so TB is presumably not classifying them as junk. I do not have any junk filters setup. To read them I have to save them to the hard drive then manually add the ".PDF" extension back on. I have tested this by getting emails with attachments from the same source sent to a gmail account and viewed using webmail and this has no issues. Any help would be appreciated. Thanks John

Thunderbird is marking some emails as ***SPAM*** and removing the ".PDF" file extension from attachments but these emails are not spam. To be clear these emails remain in the inbox so TB is presumably not classifying them as junk. I do not have any junk filters setup. To read them I have to save them to the hard drive then manually add the ".PDF" extension back on. I have tested this by getting emails with attachments from the same source sent to a gmail account and viewed using webmail and this has no issues. Any help would be appreciated. Thanks John

Chosen solution

Thunderbird does not use the word Spam or modify subject line to include the word Spam. Check with your providers spam filtering options or and anti spam software you have on your computer.

Read this answer in context 👍 1

All Replies (2)

user01229325
user01229325
more options

Chosen Solution

Thunderbird does not use the word Spam or modify subject line to include the word Spam. Check with your providers spam filtering options or and anti spam software you have on your computer.

JBB1
JBB1 Question owner
more options

Thanks for the update information, most appreciated. I did some more checks and it is the Norton antivirus spam detector which needs to have and exception configured for some reason.