spam headers being added to outgoing email when this extension is installed

[bplus]

Filter issues MUST NOT be reported here. Read first: https://github.com/gorhill/uBlock/blob/master/CONTRIBUTING.md

Describe the issue

When sending email with this extension installed, spam headers are being injected into my outgoing emails. I installed and uninstalled it several times from the link at the official Safari extension store, and the headers being added only when this extension is installed was a consistent behavior.

I don't have any technical followup (I just did user-level testing, not packet checking, etc), but thought you should know.

One or more specific URLs where the issue occurs

[URL(s) for issue on a specific site are mandatory]

Screenshot in which the issue can be seen

[Screenshot(s) for visual issues are mandatory]

Steps for anyone to reproduce the issue

1. Be as detailed as possible:
2. Because we are not looking over your shoulder and
3. Keep in mind: Nobody can read your mind.

Your settings

[If you fail to provide this info, I will mark the issue as invalid. Lists all settings which differs from default settings]

• MacOS version:
• Safari version:
• uBlock Origin version:

Your filter lists

[Example: "Default filter lists + FRA", or "Default filter lists minus uBlock -- Badware risks"]

Your custom filters (if any)

[nicbarker]

I'm not the maintainer but when you say

spam headers are being injected into my outgoing emails.

I don't think there's enough information here to meaningfully understand the issue.

• What email provider?
• What spam headers?
• Have you tested any other ad blockers?

It's just a browser extension, I'm almost 100% certain that email headers from a web email client would be generated server side, so I don't think there would be a way for a browser extension to influence them. It's possible that your email provider is using a bot detection script on the client side which is being blocked, and as a result they are adding spam headers to your emails.