Question/problem regarding Humble Bundle

2 years ago..... ähm yes....
i would say "lost" and finish.

If you claimed the game, I believe it should show up in your HB library. (HB > Account > Library.) Check there?

If it was that long ago, another possibility is that the link format changed (basing this solely on web development experiences not knowledge of HB specifically)

Here is the link format from a recent one:
https://www.humblebundle.com/gift?key=YOUR_KEY_HERE

If yours looks different, try grabbing just the key portion and using it in the format above and see if that works. Worst its gonna do is still say no, right? also when i say key, i am meaning the HB invite key code, obviously not the steam key.

Only other option i can think of is to see if your friend is willing to resend it (i would assume they still have access)

[quote]Unfortunately, I forgot to activate or at least write the key down back then and when I now try to click the "Get your Gift"-button of said E-Mail, it opens up a new tab, telling me that the website can't be found[/quote]
What, exactly, does it say?
Even if something happened you shouldn't get website can't be found, you'll either get a page that says this code has been redeemed, or this gift has been claimed by someone else, or unknown gift. Those all mean different things.

Checked my old email receipts. Same issue with gifts, orders, and bundles, including monthlies, between dates in July 2018 and December 2018.

Not an issue for orders and bundles. They still show in my purchases on Humble and in Order Resender emails. I redeemed all my gifts so that's not an issue for me.

Gifts don't show in Order Resender anymore. They used to show, I've had emails with them and they would even say gift but now they don't show in Order Resender.

You should contact Humble support to recover your gift link and key. They did something to domain prefixes url????.humblebundle.com and mailer.humblebundle.com as those links with those prefixes in my emails don't work anymore. Let me know if you get an answer on why they wrecked those prefixes and links.

Not just gift links in those emails. All of the links (Humble store, social media, support, email preferences, etc.) in the email all use the url???? prefix and all of them are broken. Maybe it used to redirect to a service they stopped using.

https://en.wikipedia.org/wiki/Link_rot

Do you have more than one hb account? If so, is your current humble account the same you used when you opened the gift link?

For some data points, I checked my first ever gift link from HB (still an active link, unredeemed), from 2012. It's in the format:

https://www.humblebundle.com/?gift=ABc1defGHi2j

(12 characters, alphanumeric, mixed case.)

By at least 2015, gift links are increased to 16 characters. Still mixed case alphanumeric, and otherwise in the same format. Checked with a gift link I'd already redeemed, and was directed to the download/key page correctly, a key still shown and also still connected to my account.

Here's the url that I'm redirected to when attempting to view a gift url where the gift has already been redeemed by someone else (was a gift link from 2019):

https://www.humblebundle.com/receipt?s=used-gift&product=shopping_cart

Hope that info helps somehow!

(Don't have 2018 gift links to check, unfortunately.)

EDIT: Nevermind -- like ProphetFinagle -- I have an order email with the exact same issue as you're describing (the url3645 thing and everything...). I'm on Gmail.

EDIT 2: Here's an (actual) example URL -- it's from November 8th 2018 -- for my order of the game Fractured Lands for zero dollars. (Humble later sent an email that the free game was unintentional and that the key would be revoked -- I don't remember if that actually ever happened.) But I have links for other non-free orders that are also in this same format and similarly not working. In my Humble Library/Purchases pages though, Fractured Lands and those other orders (having been redeemed) are still available to me as keys.

https://url3645.humblebundle.com/wf/click?upn=hALs7eeyZK8pdtQtNybDx-2BkvHp0wZFYeS61FXUbQOen8pSdVTDi79JtDC3PRoLkkrf6zMwpARXyspTX4tBhkBO2ywmBwjHTR5GKCVg5MSfs-3D_kHmGgY4dCI6x4TyWSjTixHvJBBiu-2BMs4nRUtOq-2Fn0KKuvt-2BUZAZnW1d33NXak3DAQj2p-2F4DfsxIwGD3Xw0ZOyh56zZT8ROEErh-2Fe6vBOuCIaTMn9BGwr1AqTOhfmHnNYcy3yGO367RiqcVi6P2jP7fjRL0TixHBweNYDy2GehMydvUv1gcU2bRpakuaLlD9L4OLowUljpeZCYkh-2BDMI8PtEtrh353Tim8ij-2FPsLD9ZxvtvQUSBtOrq8JUrQMnlg6lpmC9i7FYuTh2ji8Ygw-2FzNCpROdGGX-2FG-2B23MLxPy-2FAyAVnNMJVkIS4taMOMcDaW0

EDIT 3: Also of note: all of the links in that email are in the same format -- whether they're links to the Humble Store itself, to their Twitter account, to their support page, etc -- everything has this url3645 click-tracking happening. (I wonder if this is why gift links were apparently being stolen a couple years ago -- an untrustworthy click tracking company?)

EDIT 4 (for the OP): If your email is similar to mine, there's also the text:

Contact our support if you have any issues and refer to transaction ID ABC01DE2FGH3I.

If your gift email doesn't have that, then like the poster after me mentioned, you could check if your friend has the transaction ID instead. Annoying, but it looks like a hole that Humble dug themselves and they should hopefully be able to dig you (and your game) out of it.

How about asking your friend? Heshe should still be able to see any keys of orders shehe made.

Why not write Humble Support directly?

Update: I contacted the Humble Bundle Support and they were very nice about it. The found the link I needed to access my key and sent it to me straight away! Thx everybody for the help!