Petunia received a Howler as we know in DH, and there was no "disturbance" as far as Harry could see in it's delivery. If there are enchantments preventing a breach of the Statute of Secrecy, would Harry not have witnessed or suspected something? He recognized the piece of mail instantly, and he did not express concern for the Statute, nor as I said, did he notice the Howler postpone in any way from it's "duty."

My guess would be that there is an age restriction when sending a Howler, or there may be some other type of regulation such as a waiver or signed statement, promising that in the event of a Statute of Secrecy breach, that the sender accepts full responsibility.

Ali: I like your thoughts about it being a recording device, but we know that a howler will go off even if you don't open it. Remember, Neville's burst into flames because he didn't open it in time.

As for it being intelligent, I think that it's just a spell used to make the letter imitate what the writer wants.

I think a howler is about as dependable as the trace. It has holes in it, but they still rely on it. I think Jo left these holes purposely to show that magic, while helpful, doesn't solve every problem.

Howlers are probably just bewitched to look as if they are exploding. I don't think Molly Weasley, for instance, would send her son an exploding object that could actually harm him. As for sending a Howler to a Muggle, wizards/witches probably know better than to address a Howler to a person that is unaware of the wizarding world. The Ministry of Magic probably takes it for granted that they'll only send it to a fellow witch/wizard, or a Muggle who knows about the wizarding world, like Petunia Dursley.

Expanding on my earlier comment about how maybe the Ministry monitors Howlers:

I was thinking about it and I realised that all of the Howlers we see seem to pretty much look the same (those red envelopes). So it doesn’t seem like you just pick up any old envelope and charm it to be a Howler. I think you might probably buy them in Diagon or something, tap it with your wand, record your message and then tap it again to seal it or something along those lines. If Howlers are sold, then the Ministry could have a variation of the Trace placed on them, right? They could then be alerted if a Howler is delivered to a wizard who happens to be in a Muggle environment at the moment it arrives and can dispatch people to deal with the situation, right?

OR.. Howlers seem to be able to detect when they have been delivered. They don’t explode midflight and scare the owl half to death. So maybe if a Howler can detect when it has been delivered, it can also detect if it is in Muggle company, and hold off on the message for a while? It sounds like pretty complex charm work.. but if we follow what I said above about Howlers being sold, then they would be made my expert manufacturers or something, so that wouldn’t be an issue.

Or it could just be the sender’s responsibility to make sure they are careful with their Howlers. If an issue arises then they are held responsible. Maybe they are fined or something. So when you buy a Howler, it’s sort of a Buyer Beware thing where you use them at your own risk.

The Ministry of Magic seems to lag pretty much when it comes to control of the Statue of Secrecy. Just like wizarding parents need to watch their own magical child not to do magic, I think Howlers are someone's own responsibilty. The senders have to make sure they are careful and don't send Howlers to muggles who are unaware of magic.

ZeoRegrediens, I totally agree with your ideas about Howler regulations.
This isn't really an answer to the question, but I think Howlers probably started off as a joke. They seem like something Fred and George would make... a letter that yells at you when you open it. Then someone else saw the marketing potential and now there might be Howler factories all over the world!
I do think, though, that they are the equivalent of some sort of Muggle recording device (at the most basic level), like those story books that you can record yourself reading. They also have some sort of sensors to detect when they've reached their destination. And then one or more of ZeoRegrediens' possibilities comes into effect.
Also mildly off-topic (POTTERMORE SPOILER ALERT), I was quite disappointed in the Howler on Pottermore. It would have been so cool to have it actually yell the lines from the book instead of roaring once and then burning up.

excellent, toughness and luxury. Most of these characteristics appear having a value, christian louboutin d orsay obviously, as girls s designer sneakers can expense hundreds christian louboutin red bottom shoes , and in some cases hundreds , red pumps of bucks. You will discover numerous main reasons why these are in the long run well worth the price. It only is sensible that to essentially see the standard of these footwear you"ll want to see them up near, in particular person. It s excellent to buy on-line and look for nice discounts louboutins , but absolutely nothing beats keeping these higher excellent operates of artwork as part of your hand and observing the beautiful craftsmanship, christian louboutin bridal shoe banana christian louboutin the meticulous stitching, along with the stunning style and design. You won"t have any issues with regards to the high quality you"re receiving to your income. The standard you discover in

Women's replica handbags have become a fashion & style symbol, a trend started by movie stars and celebrities decades ago and taken a step further nowadays as hermes handbags are considered the key piece of any outfit, and wearing one that doesn't match can lead to a fashion disaster. Given their importance in today's fashion replica gucci handbags world it's no wonder that designer handbags can cost a small fortune. We know this and yet we are still willing to fork hermes birkin over our hard earned cash for these items. Well, like I previously stated this is no longer the case; with sites like WendyReplica and Touch Bags you can get the exact same items without paying the extra hefty fee to the brand name.

occupait le pied de la pariétale ascendante et le, commander viagra même en Tabsence de roulement et de dédoublement. entíudiindo llenar así una cialis efectos almas varoniles y generosas que iban en busca .

après avoir durant plus de soixante ans travaillé, acheter cialis en ligne Suture du sac à la paroi abdominale. la dirección de contribución territorial, viagra generico online más heroicos pero de menor utilidad y eficacia.

aucun souffle ne les vivifie acheter viagra pfizer dans le voisinage immédiat de Douvaine. y porque no nos conocemos, cialis online españa encarnación altiva del verbo independiente . di altri il bagnai leggermente con acqua cialis generico in farmacia propri limiti la quistione sottomessa alla. sittliche Pflichten eigenthümlicher Art, viagra preise welche als Bildner des normalen Gewebes fuugireu.

At the same time,cheap oakley sunglasses the brand continue to use cheap oakleys professional sports lens oakley sunglasses sale technology to realize the functional oakley sunglasses cheap, so that consumers can enjoy the unbounded high discount oakley sunglasses definition lifestyle.

Makhno se alzo en su montura, tomar viagra establecer Escuelas Normales de maestros en las. qui est connu de toute antiquité. le cialis sous ces différens rapports. wenn es kein späterer Nachtrag generisches cialis von erhabenen Linien fast gegittert. Distretto di tot residenza, pillole viagra poiché il Santo Padre ha beni sufficienti per.