seikyuusyo wo meeru de uketotta node, konya kakuninsimasu.

を marks the direct object of the verb 受け取った.

So in this sentence:

• 請求書を受け取った = received the invoice

The thing being received is 請求書, so it takes を.

Here, で shows the means, method, or channel.

So:

• メールで受け取った = received it by email
• メールを受け取った = received an email

That is an important difference.

In this sentence, the invoice is the thing received, and email is just the method of delivery. That is why メールで is correct.

受け取る means to receive or to take delivery of something.

In business or formal contexts, it often sounds a bit more deliberate or official than a very casual get in English.

Examples:

• 荷物を受け取る = receive a package
• 請求書を受け取る = receive an invoice

Here, 受け取った is the plain past form, meaning the receiving already happened.

Because the sentence describes two events:

1. The invoice was received
2. It will be checked tonight

So the first action happened earlier, and the second action happens later.

Japanese often uses past tense in the reason clause when that action is already completed:

• 請求書をメールで受け取ったので、今夜確認します。

This means: because I received the invoice by email, I will check it tonight.

ので means because or since. It connects a reason to a result.

Structure:

• reason + ので + result

Here:

• 請求書をメールで受け取ったので = because I received the invoice by email
• 今夜確認します = I’ll check it tonight

So ので introduces the reason for checking it tonight.

Both can mean because, but the nuance is different.

• ので sounds a bit softer, more explanatory, and often more polite
• から can sound more direct or more like the speaker’s personal reasoning

So:

• 請求書をメールで受け取ったので、今夜確認します。
  • softer, natural in polite/business contexts
• 請求書をメールで受け取ったから、今夜確認します。
  • also correct, but a little more direct

In a work-related sentence about an invoice, ので is very natural.

Japanese often omits the subject when it is clear from context.

In English, you usually need to say I, but in Japanese it is often unnecessary.

So this sentence could imply:

• I received the invoice by email, so I’ll check it tonight
• or in some contexts, we might be understood

Because 確認します is polite and the sentence is about the speaker’s action, I is the most likely understood subject.

Because the checking has not happened yet.

確認します is the polite non-past form of 確認する. In Japanese, the non-past form can mean either:

• present habitual action, or
• future action

Here, because of 今夜, it clearly means future:

• 今夜確認します = I’ll check it tonight

確認する means to confirm, to check, or to verify.

It is more purposeful and formal than just look at.

With an invoice, 確認します suggests something like:

• checking the contents
• verifying the amount
• making sure everything is correct

So it is a very natural business word here.

今夜 means tonight.

It refers to the evening/night of the current day.

So:

• 今夜確認します = I’ll check it tonight

It works as a time expression and does not need a particle here.

Many common time expressions can appear without a particle, especially when they indicate a general time.

Examples:

• 今日 = today
• 明日 = tomorrow
• 今夜 = tonight

So:

• 今夜確認します is natural

You may sometimes see time words with に, but with words like 今日, 明日, and 今夜, it is usually omitted.

No, it is not strictly necessary, but it is very natural.

The comma helps separate the reason part from the main action:

• 請求書をメールで受け取ったので、今夜確認します。

It makes the sentence easier to read, especially because the first part is a complete reason clause.

Without the comma, the sentence is still grammatically fine.

Yes, that is understandable, but 確認します sounds more natural and appropriate in a business context.

• 確認します = confirm/check/verify
• チェックします = check

チェックします is common and widely used, but it can sound a little more casual or less formal depending on context.

For an invoice, 確認します is usually the better choice.

Sometimes, but the nuance changes.

• 受け取る focuses on the act of receiving something
• もらう focuses more on getting something from someone

In a business sentence about an invoice arriving by email, 受け取る is more natural and neutral.

For example:

• 請求書をメールで受け取りました sounds professional
• 請求書をもらいました is possible, but it can sound less formal and may emphasize the giver more

So 受け取った is a very good choice here.