mail.rediff.com is blocked by adguard if "Protect from DPI" option is checked in Stealth Mode

[hako9]

Please answer the following questions for yourself before submitting an issue

• [X] Filters were updated before reproducing an issue
• [X] I checked the knowledge base and found no answer
• [X] I checked to make sure that this issue has not already been filed

AdGuard version

7.18.1 (4778)

Browser version

Edge 128.0.2739.42

OS version

Windows 11, 24H2 (OS Build 26100.1586)

Traffic filtering

• [X] yes, I do

Ad Blocking

AdGuard Base filter

Privacy

AdGuard Tracking Protection filter, AdGuard URL Tracking filter

Social

AdGuard Social Media filter

Annoyances

AdGuard Cookie Notices filter, AdGuard Popups filter, AdGuard Mobile App Banners filter, AdGuard Other Annoyances filter, AdGuard Widgets filter

Security

No response

Other

Filter unblocking search ads and self-promotion

Language-specific

IndianList

Which DNS server do you use?

AdGuard DNS

DNS protocol

DNS-over-QUIC

Custom DNS

No response

What Stealth Mode options do you have enabled?

Block trackers, Remove tracking parameters, Hide your search queries, Send Do-Not-Track header, Self-destruction of third-party cookies, Disable Windows Telemetry, Turn off Advertising ID, Remove X-client-Data header from HTTP request, Protect from DPI

Support ticket ID

No response

Issue Details

Steps to reproduce:

1. Enable "Protect from DPI" in Stealth Mode Settings
2. Go to mail.rediff.com on any browser

Expected Behavior

No response

Actual Behavior

ERR_CONNECTION_RESET

Screenshots

Screenshot from filtering log


Additional Information

No response

[Aydinv13]

@hako9 Hello!

As we support the dpi modifier, could you please add a rule @@||mail.rediff.com^$stealth=dpi to User rules (Settings -> Ad Blocker -> Filter Editor -> Add a rule).

[Aydinv13]

Relates to https://github.com/AdguardTeam/CoreLibs/issues/1645