Om ämnesraden inte ser rätt ut, brukar jag kontrollera om mejlet ligger i skräppost.

The two om words do different jobs:

• The first om means if:
  Om ämnesraden inte ser rätt ut = If the subject line doesn’t look right

• The second om means whether / if in an indirect question:
  kontrollera om mejlet ligger i skräppost = check whether the email is in spam

So English also often uses if twice in the same way:

• If the subject line looks wrong, I check if/whether the email is in spam.

Ämnesraden is the definite form, meaning the subject line.

• en ämnesrad = a subject line
• ämnesraden = the subject line

The ending -en marks definiteness for many common-gender nouns in Swedish.

So the sentence is talking about a specific subject line, not just any subject line in general.

This is because Swedish follows the V2 rule in main clauses: the finite verb usually comes in the second position.

The sentence begins with a subordinate clause:

Om ämnesraden inte ser rätt ut, ...

After that, the main clause starts, and the finite verb must come next:

• brukar = finite verb
• jag = subject

So:

• Om ..., brukar jag ...

Not:

• Om ..., jag brukar ...

This is very common in Swedish:

• När jag kommer hem, äter jag.
• Om det regnar, stannar vi inne.

Because this part is a subordinate clause.

In Swedish subordinate clauses, sentence adverbs like inte usually come before the finite verb.

So:

• Om ämnesraden inte ser rätt ut

Compare that with a main clause:

• Ämnesraden ser inte rätt ut

This is a very important word-order difference in Swedish:

• Main clause: verb + inte
• Subordinate clause: inte
  • verb

Ser rätt ut means looks right or appears correct.

It comes from the verb se ut, which often means look / appear.

So:

• Det ser bra ut = It looks good
• Det ser konstigt ut = It looks strange
• Det ser rätt ut = It looks right / correct

Here, ut is part of the verb expression. You should learn se ut as a unit.

Because se ut is a particle verb, and in many Swedish main and subordinate clauses the particle is separated from the verb.

So:

• infinitive: se ut
• present tense: ser ut

Examples:

• Hon ser trött ut = She looks tired
• Det ser bra ut = It looks good

In your sentence, rätt goes between the verb and the particle:

• ser rätt ut

That is normal Swedish word order.

Brukar means something like usually, tend to, or am in the habit of.

So:

• jag kontrollerar = I check
• jag brukar kontrollera = I usually check / I tend to check

It shows that this is a habitual action, not just something happening once.

A very natural English translation is:

• I usually check whether the email is in spam

Yes, but the meaning changes a little.

• Om ämnesraden inte ser rätt ut, brukar jag kontrollera om mejlet ligger i skräppost.
  = If the subject line doesn’t look right, I usually check whether the email is in spam.

• Om ämnesraden inte ser rätt ut, kontrollerar jag om mejlet ligger i skräppost.
  = If the subject line doesn’t look right, I check whether the email is in spam.

Without brukar, it sounds more like a direct statement of what you do, rather than a habit or tendency.

Swedish often uses location verbs more literally than English.

Ligga normally means lie or be lying, but it is also commonly used for things that are located somewhere:

• Boken ligger på bordet = The book is on the table
• Nycklarna ligger i väskan = The keys are in the bag

With emails, files, messages, and similar things, Swedish often says they lie somewhere:

• Mejlet ligger i inkorgen
• Filen ligger i mappen

So mejlet ligger i skräppost is a natural Swedish way to say the email is in the spam folder.

Here skräppost is being used a bit like a category or folder name, similar to spam in English.

So i skräppost can mean:

• in spam
• in the spam folder
• among spam messages

Swedish often leaves out the definite ending in this kind of digital or category-style expression.

That said, in some contexts you may also hear things like:

• i skräppostmappen = in the spam folder

That version is more explicit.

Mejl is the basic noun, meaning email.
Mejlet is the definite form, meaning the email.

• ett mejl = an email
• mejlet = the email

This noun is neuter, so the indefinite article is ett, and the definite singular ending is -et.

Yes, mejl is completely normal and very common in everyday Swedish.

You may also see:

• mail in older or less Swedish-style spelling
• e-post in more formal or official contexts

But mejl sounds natural in everyday language.

Similarly:

• mejla = to email

Kontrollera means check or verify and is a standard, neutral verb.

You could also hear more informal alternatives such as:

• kolla
• titta om

But kontrollera sounds slightly more careful or neutral. It fits well in a general explanatory sentence like this one.

Sometimes, yes.

In many cases om introducing an indirect yes/no question can be translated as whether in English.

So:

• kontrollera om mejlet ligger i skräppost = check whether the email is in spam

In Swedish, huruvida can sometimes mean whether, but it would sound much more formal and not natural here.

So om is the normal choice.

Not quite.

• är rätt = is correct / is right
• ser rätt ut = looks right / appears correct

So ser rätt ut is about appearance or impression, not absolute fact.

That makes sense with a subject line: you are judging whether it seems normal or suspicious.

Grammatically, yes, that is a literal breakdown, but it is not natural English.

A better natural translation is:

• If the subject line doesn’t look right, I usually check whether the email is in spam.

Literal meanings can help you understand the Swedish structure, but when translating, it is better to use normal English phrasing.

The key things to notice are:

• om can mean both if and whether
• ämnesraden and mejlet are definite forms
• inte comes before the verb in the subordinate clause
• Swedish uses V2 word order in the main clause: brukar jag
• se ut is a particle verb meaning look / appear
• brukar expresses habit
• ligga is often used for something being located somewhere, even digitally

So this one sentence is a very useful example of several important Swedish patterns at once.