What good is certified mail for proof? I frequently read that in important correspondence one should use certified mail. But what good is this, really? All sending a letter this way will show is that I sent a letter and it was received. It does not verify the content of the letter, and the recipient could simply throw it away and deny what it was about. So, what is the point of certified mail for things like complaining to your apartment manager, requesting something with legal significance from your employer, etc?
Assume that this happened in a matter that goes to court. In civil court, there is no "innocent until/unless proven guilty". In civil court, the judge hears everyone's story, and decides which story is more likely to be true. So I tell the judge "I sent a letter by registered mail; this is what was in the letter, and the post office reported to me that they delivered the mail, and someone signed for it". And you say "I never received a letter". The judge will believe me and the post office. You say "I received a letter and signed for it, but there was just a birthday card inside". Who does the judge believe? Does he or she believe that you received a letter with the contents I said and you are lying about it, or does she believe that I sent you an unsolicited birthday card by registered mail? Why would I do that? So they believe me. Now if you said "I received a registered letter containing just a birthday court, so I immediately called my secretary and three other people in the office to see this and to verify there was nothing but the birthday card, and here they are as witnesses", then the court might start believing you.
First, agree w/Dale M re: it would be an egregious and likely career-ending move for an attorney to fake his representation. That said, there is likely no reason why you would be unable to request such proof of representation. Your job consists of protecting the assets of the trust, carrying out any other duties outlined in the trust document, being honest and in communication with the trust's beneficiary, managing the assets, and ending the trust as determined by the trust document. Several of those points (particularly the "protecting the assets" part) argue heavily in favor of your confirming the veracity of any claims involving the trust and/or the identity or true intent of those seeking any information, etc., with respect to the trust. Also, demand letters are letters stating a legal claim and usually asks for restitution or performance of an obligation. It's not entirely clear what constitutes a "demand letter requesting information" unless you have a legal duty to provide that information (and this would - or should - be stated in the demand letter itself). Finally, should you be unable to obtain the confirmation you're seeking, you should consider consulting a trust administration attorney. In most cases, you may use trust assets to pay for expert help (including tax preparers and accountants).
To what degree are such emails admissible in court as evidence, and what weight do they carry? Your own statement, when offered by you as evidence, is hearsay, unless it comes within an exception to that rule. Recorded recollection might be one of the better exceptions. There is also a chance that you could get it in as a business record of the company if you were using a company email account and the company stores all of its email communications. The documents also sometimes come in to provide fair context for a conversation with a party-opponent's statements that are admissible. It appears that Canada does not follow the modern British rule (which repealed the hearsay rule in civil cases in 1995), which if it were available, would come in without any difficulty at all. But, Canada does have what it calls a "principled exception" (which is somewhat broader than the parallel U.S. residual hearsay exception) that is generally available if the document can be shown to be reliable and there is an unavailable witness, or if there proponent of the document can show that it is reliable and necessary for other reasons. Even if the document itself is not admissible since it is hearsay, you could still testify as to what the boss said from your own recollection, and then have your lawyer ask you why you are sure that this is what was said. You would answer that you contemporaneously wrote a confirming letter to the boss spelling out what was said and you reviewed it to refresh your recollection before testifying at the hearing or trial. These kinds of confirming letters are used quite frequently in business and employment litigation. And, in my experience, these statements tend to be surprisingly effective and persuasive, because, while they do not foreclose the possibility that the person writing it was lying or inaccurate in the confirming email account, it does rule out the possibility that you forgot exactly what was said, and you provided the boss with an opportunity to dispute you which the boss didn't feel an obligation to correct. If one party has a coherent account in confirming emails of what was said, and the other party is trying to remember what happened a year or two earlier without notes from the witness stand, the person with the coherent, documented account is almost always going to come across as more credible unless the other side can show that your confirming emails are not infrequently gross misrepresentations of what really occurred. (I've also dealt with witnesses like that now and then.)
It is like an affidavit of sort, sworn out without the jurat and not before a notary. The swearing out of a complaint or rebutting evidence in all Federal civil matters (some states allow for the same) must contain an affidavit or an "unsworn declaration" that swears out the facts to be true and accurate, even though not notarized, and is based on fact and not supposition. It is subject to the same penalties of perjury if one lies as if you swear on a bible and testify in court or on a "sworn" affidavit. Affidavits need not be sworn before God, or on a bible. You have a right to just "affirm" that you will tell the truth, the whole truth, and nothing but the truth....and not "so help me God". Many courts don't use a bible at all anymore. 28 U.S.C. 1746 relates to these "Unsworn Declarations Under Penalty Of Perjury" It is not b/c you don't believe in God that you'd use this...you always have the option of swearing out even a declared affidavit or testifying without swearing on a bible if you're an atheist. They just leave out the "before God" part. Affidavits are the norm, however, in Federal Courts that have an expedited docket this is typically used when it could take a while to get a notary and the evidence is due. (In some states lawyers are automatically notaries but in others they aren't). The ability to swear out a complaint or contest a deposition without having to wait on a notary can be the difference between making your deadline or not. It's commonly used when records custodians are called to certify the authenticity of documents produced pursuant to subpoena or other formal request. Under F.R.Civ.P 56 declarations usually are not within the type of evidentiary categories that can be used at the summary judgment phase. If it's a small misstatement you would probably be faced with a fine. If it's a total lie, outright, you'd be looking at jail time (say a records custodian removed evidence and swore out it was the complete business record in a fraud case). 18 U.S. Code § 1621 discusses perjury generally (in federal actions).
You should not keep them at all. Mark them clearly with whatever variant of "not living at this address"/"not known at this address" is accepted in your area, or with "return to sender, wrong address" and provide them to the courier agent or post office responsible for your area. Keeping mail that isn't yours opens you to offences like theft or conversion, or of interfering with the post system. Opening mail that isn't yours opens you to offences specifically defined by that action, as well as potential privacy breaches. Destroying mail that isn't yours opens you to offences of property damage.
In the UK and USA (and I imagine other jurisdictions) there have been laws that explicitly provide for orders obliging entities to (A) provide access or information and (B) keep the order secret. For example, in the USA the Stored Communications Act, Fair Credit Reporting Act and Right to Financial Privacy Act authorise the FBI to issue National Security Letters (Wikipedia, EFF, EPIC, Lawfare). These are an administrative subpoena, without prior approval from a judge, for meta-information (e.g. phone numbers dialed or email recipients addressed but not the content) of communications relevant to national security investigations. They typically contain a non-disclosure requirement prohibiting the recipient of the NSL from disclosing its existence or the FBI's demands. There have been challenges on First Amendment grounds to the non-disclosure aspect but, so far as I'm aware, they have all ultimately failed. Some of their non-disclosure requirements may eventually expire under other laws. In response, so-called 'warrant canaries' (Wikipedia) have been developed (and gone a bit further than the original idea) - these are intended to allow entities to relatively passively warn of such an order having been received if not the detail of the order. However, they can be legally risky in that they might be seen by a court as trying to circumvent the non-disclosure requirement and therefore breaking it.
We don't have a lot of details, but if you're in the United States, the answer is probably yes. There are rarely any meaningful rules of evidence in student misconduct cases, so pretty much anything can come in. There may be some small difference in the answer depending n whether you're dealing with a public university or private, but in either case, I can't think of any reason why they would not be able to introduce the evidence if they had it. If there's a question about its authenticity, I imagine that would just be up to the misconduct board to decide. If Person X says "Person Y sent this to me," and Person X seems credible, that's probably going to be enough.
I spent 26 years in Law Enforcement (two years in Fraud, Identity Theft, and Embezzlement) and here is the answer I would often give other people in this situation: By law, recipients are not required to do anything. It can be deleted without a second thought. There is no specific law requiring someone to report this as it doesn't rise to the level of a crime. Contacting the sender or intended recipient can be risky because the other person is unknown. Return addresses online may be masked by redirects or other traps. What is displayed may not be the full picture of the site where they want someone to go. Having information about someone, although private, is not a crime unless there is a specific intent to use that information for a crime: fraud, identity theft, theft, etc. Doctors, banks, and numerous other businesses have access to personal identifying information about people. Unless they were to use it illegally, just having the information is not a crime. Phishing attempts: As far as sending the information on to the intended recipient, that would be very noble; but there is no requirement to do so. This type of transaction is likened to having a stranger call looking for someone else. There are people around the world just hoping to get people to click on their site so they can download everything on the victim's computer. I once taught a class in Internet Safety to senior citizens. The message was simple: Don't put any information on-line that you wouldn't post on your front door. Advances on computer security have made it possible to securely handle more information but still be on-guard; Phishing still happens. Most reputable companies won't send you e-mails asking for personal information, passwords, or account numbers. Hackers, thieves, and criminals have access to personal information regularly. In today's society, it's just a part of life in a digital world. How does one protect themselves? Be diligent about all transactions. For instance: Check bank accounts, credit card purchases, and credit reports regularly. A TV show, Adam Ruins Everything - Adam Ruins Security, clearly outlines a lot of these facts. (Season 1, Episode 2 - First aired October 6, 2015) To recap: 1) Do nothing. 2) Stay vigilant. 3) Be wary. Common idiom - If it looks too good to be true, it probably is.