Seerr logo does not appear in SMTP notifications with Gmail when Seerr is not reachable from Google's servers

[felixschndr]

Description

When receiving a mail from Seerr the logo of Seerr is not loading:

As you can see the logo on the top does not work, the logo of the requested movie does work.

---

The Seerr logo points to (extracted from dev tools)
https://ci3.googleusercontent.com/meips/ADKq_NYaSl1IJE2DY07kccQf4ZAG4q-b6nTl_Fs31TGyHQJTE8-VSlmOc4b0NZ4RyqJIw0udB9fueNZ3WVESdxNmXInu8fDp=s0-d-e1-ft#https://<my-domain>/logo_full.png which results in a

https:///logo_full.png is a valid url, works and returns the logo.

---

The logo of the movie points to
https://ci3.googleusercontent.com/meips/ADKq_NYsR5FccTpzfZVVzz3ppGez6WJVQ7qlHsN4e4FLzNo2M49-3OY3wFgaiGcGL-3OynQoZgiqw2qLCuJHHTe7a_XnMWNpLsMTlU9YgMJJedwNiWXnFRISPXruhTnL7NL2ocM4ru2g=s0-d-e1-ft#https://image.tmdb.org/t/p/w600_and_h900_bestv2/oZLHMMxFrYpf38Yj53GuH7E6hL6.jpg
--> https://image.tmdb.org/t/p/w600_and_h900_bestv2/oZLHMMxFrYpf38Yj53GuH7E6hL6.jpg

which works (in both ways).

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So whatever google is doing with the url of the logo is messing it up somehow.
However, this not only seems to a problem with google. This a screenshot of a mail sent to my mail address hosted on IONOS:

In the mail to IONOS the image element is
<img src="https://<my domain>/logo_full.png" style="width: 26rem; image-rendering: crisp-edges; image-rendering: -webkit-optimize-contrast;">
which is the correct url, but does not work in the mail.

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This issue has been there for quite some time, I just now came around to reporting it.

Version

3.2.0

Steps to Reproduce

1. Set up SMTP notifications
2. Request a media
3. Wait for it to be available
4. Receive the mail with the missing logo

Screenshots

No response

Logs

Platform

desktop

Database

SQLite (default)

Device

Every device

Operating System

Every OS

Browser

Every Browser

Additional Context

No response

Search Existing Issues

• Yes, I have searched existing issues.

Code of Conduct

• I agree to follow Seerr's Code of Conduct

[M0NsTeRRR]

Is seerr accessible from this device when you try to reach it from your email client?
This means that if your server is only reachable through your home network, it won’t work on your email client when you’re not connected to that network.

[felixschndr]

My email client in this case is the browser on my computer/phone.
The device itself is able to reach the seerr instance.
I don't know whether the email client itself (the application in the browser) does some magic that tries to pull the image from their servers which then tries to pull it from my seerr instance (which is not possible as the instance is not publicly available).

[felixschndr]

I now see something:
Viewing the mail in IONOS requires a permission to access local devices (which I did not grant before). After granting this the images is shown properly.

My guess is that google goes over their servers to pull the image and then fails to load.

[M0NsTeRRR]

It seems Google enforces image proxying for all images in emails, routing them through its own servers. According to Google’s official documentation, this behavior can be bypassed for Google Workspace accounts by configuring an image URL proxy allowlist in the Admin console. However, this is not possible for standard Gmail accounts.

It means Google's servers need access to your images, and therefore to your server instance.

[felixschndr]

My idea would be to pull the image from GitHub: https://raw.githubusercontent.com/seerr-team/seerr/refs/heads/develop/public/logo_full.svg since this is a public image

[felixschndr]

My idea would be to pull the image from GitHub: https://raw.githubusercontent.com/seerr-team/seerr/refs/heads/develop/public/logo_full.svg

What do you think about that? If you'd agree I would open a PR

[M0NsTeRRR]

The current behavior should be kept as default for GDPR compliance and privacy concerns, but we could add a checkbox in the SMTP notification settings Use public Seerr logo instead of instance logo, with a description such as:
If your Seerr instance is not publicly accessible, enable this option so email clients outside your network can display the image. The image will be pulled from our GitHub repository.

[felixschndr]

Sounds good, shall I open a PR?

[M0NsTeRRR]

Sure