The plain answer, before you queue anywhere
An apostille is not accepted in Zimbabwe, so no Italian office can hand you a stamp that will do the job over there. Zimbabwe keeps the older and slower system of consular legalisation. Under it a foreign paper collects one Italian seal, then a second seal from staff who act for Zimbabwe here.
Hunting for an apostille from Italy to Zimbabwe will throw up firms happy to sell you one anyway. Buy it and you have bought decoration: the receiving clerk abroad is free to wave it away. The money has gone and the deadline is nearer. Ask what the destination wants before you pay a soul.
Two seals stacked, not one
Picture two signatures laid on top of each other. The first belongs to an Italian public officer, who confirms that the name on your paper is a real official whose specimen his office keeps. The second belongs to consular staff for Zimbabwe, who confirm that the Italian officer is himself genuine. Only the pair together carries weight.
That pairing is what document legalisation for Zimbabwe means day to day. It runs slower than a single stamp because two bodies must act in turn, and neither will act early. Build your calendar backwards from the day the paper is due to land, rather than forwards from today.
Sorting your paper before you leave home
A record issued by a town hall or a school counts as administrative, and the Prefettura (Prefecture) in Naples handles that class. A ruling, a summons or an act drawn up before a notary counts as judicial or notarial, and the Procura della Repubblica handles that one. Neither desk stands in for the other.
If you cannot tell which class you hold, look at who signed the foot of the page. A registrar, a head teacher or a council officer points you at the Prefettura. A judge, a court clerk or a notary points you at the Procura. When in doubt, phone and read out the heading.
The desk nobody in Italy controls
Because no Italian body can grant an apostille for Zimbabwe, the consular desk is the only road open, and its answer is final. Rules there shift without notice, so put your questions to the office itself instead of trusting a forum post from two years ago.
Ask four things in one email: which papers it will seal, which language it wants the text in, what it charges, and how many days it keeps a file. Ask too whether it takes post or wants you at the counter. Print the reply and slip it in with the papers.
Money on one side, waiting on the other
On the Italian side the cost is easy to state. Stamp duty runs to €16 per document, and a good many records are exempt from it. Ask the clerk which bracket yours falls in before you buy anything, because an unused tax stamp is money you will never see again.
The consular charge is a separate matter and no Italian source prints it. Get the figure from the office itself, and ask how it wants to be paid, since counters that refuse cards are still common. Waiting time works the same way: only they can say, and only for the week you ask.
The slip-ups that send a file home
Most rejected files share three faults. A name spelled one way on the record and another way on the passport. A photocopy posted where an original was wanted. A translation made after the seals rather than before them, so it carries none of them.
Readers who look up apostille requirements for Zimbabwe often stop at the first familiar word and assume the rest follows. It does not. Treat each instruction from the consular office as the live rule, and treat anything you read elsewhere, this page included, as background to test against it.