Servisní historie je v e-mailu.

Because servisní is an adjective, and it has to agree with historie.

• historie is a feminine singular noun.
• The adjective servisní is one of the common Czech adjectives that has the same form for masculine, feminine, and neuter singular in the nominative.

So:

• servisní historie = service history

Even though historie is feminine, the adjective still stays servisní.

Servisní means service-related or maintenance-related.

In this sentence, servisní historie is the standard way to say:

• service history
• maintenance history
• especially for a car or machine

So this is a very natural phrase in contexts like vehicles, repairs, or maintenance records.

Je means is.

It is the 3rd person singular form of být (to be):

• já jsem = I am
• ty jsi = you are
• on/ona/ono je = he/she/it is

Here the subject is servisní historie, which is singular, so Czech uses je:

• Servisní historie je v e-mailu.
• The service history is in the email.

Unlike in some other Slavic languages, Czech normally does use the present-tense form of to be in sentences like this.

Because the preposition v (in) requires the locative case when it means location.

So:

• basic form: e-mail
• after v for location: v e-mailu

This is the same pattern as:

• v domě = in the house
• v autě = in the car
• v telefonu = in the phone

So v e-mailu literally means in the email.

It is in the nominative case, because it is the subject of the sentence.

The structure is:

• Servisní historie = subject
• je = verb
• v e-mailu = prepositional phrase

So the sentence is built like:

• The service history
  • is
    • in the email

That is why historie stays in the nominative.

Yes. Czech word order is more flexible than English word order.

The neutral version is:

• Servisní historie je v e-mailu.

But you could also say:

• V e-mailu je servisní historie.

Both are grammatically correct. The difference is mainly about emphasis or information structure.

For example:

• Servisní historie je v e-mailu.
  Focuses first on the service history.
• V e-mailu je servisní historie.
  Sounds more like The service history is in the email / It’s in the email.

So yes, the words can move, but the most natural choice depends on what you want to emphasize.

Because e-mail is a borrowed word, and Czech commonly writes it with a hyphen in standard spelling.

So you often see:

• e-mail
• e-mailu
• e-mailem

In less formal writing, some people may write email, but e-mail is a standard and very common form.

A rough pronunciation guide for an English speaker is:

• Servisní ≈ SER-vis-nee
• historie ≈ HIS-to-ree-ye
• je ≈ yeh
• v e-mailu ≈ v EH-may-loo

A few useful notes:

• s in servisní is like English s, not z
• í is a long vowel: -ní
• j in Czech is pronounced like English y
• e-mailu begins with e, and the whole word is declined in Czech

Yes, v e-mailu is natural.

It means something like:

• in the email
• in the message

Depending on context, Czechs might also say:

• v mailu
• v e-mailové zprávě = in the email message
• poslal jsem to e-mailem = I sent it by email

But v e-mailu is perfectly normal and idiomatic.

Yes. In Czech, historie can mean:

• history in the broad sense
• record
• log
• background

In technical or practical contexts, servisní historie usually means:

• the record of past servicing
• the maintenance history
• the service record

So it does not mean academic history here. It means the documented record of maintenance.

Because Czech does not use articles like a and the.

So:

• Servisní historie je v e-mailu.

can mean:

• The service history is in the email
• or, depending on context, A service history is in the email

Usually the context tells you which meaning is intended. In this sentence, English would most naturally use the, but Czech does not need any separate word for that.

Normally, no.

In present-tense sentences with to be, Czech usually keeps the verb:

• Servisní historie je v e-mailu.

Leaving out je would sound wrong in standard Czech.

So unlike in some headline styles or in some other languages, standard Czech needs je here.