The Serbian media outlet "Telegraf.rs" has published an article in which it claims that their editorial office has received a threat of explosions in several locations in Belgrade, where Albanians are also part of this threatening message.
But, in this article, this medium presents only a part of the photograph of this electronic message (email), in which Albanians are not seen to have been mentioned.
While the article published by this medium describes this email only in text, but not with a photograph (printscreen) of the authentic email, which would prove the claim made.
Part of the article published in the Serbian media "Telegraf.rs", translated into Albanian:
We received a terrible email: "The Serbs are destroying my country, we will mine these locations in Belgrade with the Albanians."
The email we received states that bombs have already been placed in multiple locations.
"We will not stand idly by until Russia massacres my people and destroys my country. The Serbs are accomplices in the destruction of my country and that is why we have joined forces with the Albanians to mine the following locations in Belgrade."
Link to the article published in the Serbian media "Telegraf.rs":
In the photograph published in this article, only part of this threatening message is visible, which is not complete.
In this photograph cut from this medium, it is not seen that it is written that Albanians are part of this threatening message.
Photo cropped and published by the Serbian media "Telegraf.rs":

This article was also published in other online media in Serbia with the same claim, which also did not provide any evidence that Albanians were mentioned in this e-mail as part of this threat. (see here, here, here and here)
Analyze:
The Serbian online media outlet "Telegraf.rs" has published an article claiming that their editorial office has received a threatening electronic message (e-mail) about explosions in several locations in Belgrade, where Albanians are also part of this threatening message.
However, this claim made by this medium does not present the complete picture of this e-mail, but only a part of it.
And in this fragment cut from this photograph of this electronic message, it is not seen that Albanians have been mentioned, as claimed in the article.
After verifying the facts based on the work methodology, hibrid.info has assessed this article as "Unverified Content".
Reasoning:
The “Unverified” rating is given to those media reports that do not provide sufficient information to confirm the claims made in the report, and which have not been able to confirm the same due to the lack or non-possession of reliable sources.