Bankovní spojení pošlu e-mailem.

In this sentence, bankovní spojení means bank details or bank account information — the information someone needs in order to make a payment.

Literally, spojení often means connection, but in business and payment contexts bankovní spojení is a standard expression for banking details.

Bankovní účet means bank account itself, while bankovní spojení usually means the set of payment details connected with the account.

So if someone says Bankovní spojení pošlu e-mailem, they usually mean:

• account number
• bank code
• possibly IBAN, SWIFT, etc.

So it is often closer to I’ll send the bank details by email than I’ll send the bank account.

Pošlu is the 1st person singular future form of the verb poslat = to send.

So:

• pošlu = I will send

This is a perfective verb, and in Czech perfective present forms usually have future meaning.

Related forms:

• pošleš = you will send
• pošle = he/she/it will send
• pošleme = we will send

This is about aspect.

• poslat is perfective → focuses on a completed action
• posílat is imperfective → focuses on process, repetition, or ongoing action

So:

• Pošlu bankovní spojení e-mailem.
  = I’ll send the bank details by email.
  This is the normal choice when you mean one completed future action.

• Budu posílat bankovní spojení e-mailem.
  sounds more like I’ll be sending / I’ll send repeatedly / I’ll be in the process of sending, so it is less natural in this simple context.

E-mailem is the instrumental case of e-mail.

In Czech, the instrumental is often used to express the means or method by which something is done:

• autem = by car
• vlakem = by train
• poštou = by post
• e-mailem = by email

So:

• pošlu e-mailem = I’ll send it by email

Yes, emailem is also commonly seen and understood.

You may encounter:

• e-mail
• email
• e-mailem
• emailem

In careful or more traditional spelling, e-mail / e-mailem is very common, but modern usage often allows forms without the hyphen too. The meaning is the same.

Yes. Czech often omits subject pronouns when they are clear from the verb form.

• pošlu already means I will send
• so já is not necessary

You could say:

• Já pošlu bankovní spojení e-mailem.

But that would usually add emphasis, something like:

• I will send the bank details by email.

Without já, the sentence sounds more neutral.

Czech word order is much more flexible than English word order. The sentence is grammatical because the endings and verb form make the roles clear.

This order puts bankovní spojení near the front, which can make it sound like the thing being discussed is the bank details.

Other possible word orders include:

• Pošlu bankovní spojení e-mailem.
• Bankovní spojení vám pošlu e-mailem.
• E-mailem pošlu bankovní spojení.

They all mean roughly the same thing, but the emphasis changes slightly.

A very natural English translation may still just be:

• I’ll send the bank details by email.

It is in the accusative singular, because it is the direct object of pošlu.

However, spojení is a neuter noun, and for this type of noun the nominative and accusative forms are the same:

• nominative: spojení
• accusative: spojení

So the form does not change, even though the function does.

Spojení is a neuter noun. It comes from the verb spojit = to connect / join.

Depending on context, spojení can mean:

• connection
• link
• contact
• service/route connection
• details/contact information

In bankovní spojení, it has a specialized business meaning: bank details.

Bankovní is an adjective meaning banking or bank-related.

It agrees with spojení in:

• gender: neuter
• number: singular
• case: accusative singular

So:

• bankovní spojení = bank details / banking information

The form bankovní stays the same here because this adjective pattern often has identical-looking forms in several grammatical combinations.

A rough pronunciation guide is:

bankovní spojení pošlu e-mailem
≈ bahn-KOV-nyee spoh-YEH-nyee POSH-loo EH-mail-em

A few useful points:

• š sounds like sh
• ou in pošlu is pronounced like a long oo
• í and ý are both long vowel sounds
• stress in Czech usually falls on the first syllable of each word:
  • BAN-kovní
  • SPO-jení
  • POŠ-lu
  • E-mailem

Yes, in many contexts mailem is commonly used in everyday Czech to mean by email.

So these can both work:

• Pošlu to e-mailem.
• Pošlu to mailem.

However, e-mailem is a bit clearer and more standard, especially for learners and in more formal writing.

It is fairly neutral and works well in both ordinary professional communication and everyday use.

• Bankovní spojení pošlu e-mailem.
  sounds natural in emails, business messages, or practical conversation.

If you wanted to sound a bit more formal, you might expand it:

• Bankovní spojení Vám pošlu e-mailem.
• Bankovní spojení zašlu e-mailem.

Here zašlu can sound slightly more formal than pošlu, though both are correct.