Az e-mailben részletes információ van a találkozóról.

Both a and az mean the in Hungarian.

• a is used before a word that begins with a consonant sound
• az is used before a word that begins with a vowel sound

Here the next word is e-mailben, and e-mail begins with a vowel sound, so Hungarian uses az:

• az e-mailben

This is similar to a/an in English, but in Hungarian it is only the definite article that changes this way.

e-mailben = in the email

It is made up of:

• e-mail = email
• -ben = in

Hungarian often expresses ideas like in, on, from, about, etc. by adding endings directly to the noun instead of using separate prepositions.

So:

• e-mail = email
• e-mailben = in the email

This is very normal in Hungarian. Instead of saying a separate word for in, Hungarian attaches the location ending to the noun.

This is because of vowel harmony, a very important Hungarian pattern.

For the meaning in:

• -ban is used with back-vowel words
• -ben is used with front-vowel words

Since e-mail is treated as a front-vowel-type word in Hungarian, it takes -ben:

• e-mailben

Other examples:

• házban = in the house
• irodában = in the office
• levélben = in the letter

Loanwords also follow Hungarian case-ending rules.

részletes információ literally means detailed information.

Parts:

• részletes = detailed
• információ = information

A native English speaker may expect something like detailed informationS, but Hungarian often uses információ as a singular mass noun, much like English information.

So:

• részletes információ van... = there is detailed information...

If you wanted to talk about several separate pieces of information, you could use the plural:

• információk = pieces of information / bits of information

But in this sentence, singular információ is natural.

van is the third-person singular form of to be: is / there is.

In this sentence, it has an existential meaning:

• információ van = there is information

So the structure is closer to:

• In the email, there is detailed information about the meeting.

Hungarian often uses van in sentences that express that something exists somewhere.

Compare:

• Az asztalon egy könyv van. = There is a book on the table.
• Az e-mailben részletes információ van... = There is detailed information in the email...

Because Hungarian does not need a separate dummy subject like English there.

English says:

• There is detailed information...

Hungarian simply says:

• Részletes információ van...

or, as here:

• Az e-mailben részletes információ van...

So van already handles the idea of is / exists, and Hungarian does not insert a separate word corresponding to English there.

a találkozóról means about the meeting.

It is built from:

• a = the
• találkozó = meeting
• -ról = about / from off

In this sentence, -ról has the meaning about.

So:

• találkozóról = about a meeting / about the meeting
• a találkozóról = about the meeting

This ending belongs to a pair:

• -ról / -ről

Again, which form appears depends on vowel harmony.

Examples:

• a könyvről = about the book
• a városról = about the city
• a találkozóról = about the meeting

Because Hungarian uses the definite article much like English does when referring to a specific thing.

• a találkozóról = about the meeting
• találkozóról = about a meeting / about meetings in general, depending on context

So in this sentence, the speaker means a specific meeting already known from the context.

That is why you see:

• Az e-mailben = in the email
• a találkozóról = about the meeting

Both nouns are definite here.

Hungarian word order is more flexible than English word order, but different orders can shift the emphasis.

This sentence:

• Az e-mailben részletes információ van a találkozóról.

is natural and neutral, especially if the location in the email is being introduced first.

You could also say:

• Részletes információ van az e-mailben a találkozóról.

This still means essentially the same thing, but the focus may feel slightly different.

Hungarian word order is often influenced by topic and focus, not just grammar. So several versions can be correct, but the one given is a very normal sentence.

Yes. Hungarian often has more than one natural way to express the same idea.

This sentence uses an existential structure:

• Az e-mailben részletes információ van...
• literally: In the email, there is detailed information...

But Hungarian could also use a verb meaning contains, for example:

• Az e-mail részletes információt tartalmaz a találkozóról.
• The email contains detailed information about the meeting.

Both are natural, but the original sentence is slightly more like there is detailed information in the email.

Yes, this is normal. e-mail is a borrowed word, and the hyphenated spelling is common in Hungarian.

Hungarian still treats it like a Hungarian noun for grammar purposes, so you can add endings to it:

• e-mailben = in the email
• e-mailről = about the email
• e-mailt = email (object form)

So even though the word is borrowed, it behaves like an ordinary Hungarian noun in the sentence.