Sending money via mail envelope is possible, but it is not the safest way to do it. Cash is easily lost, stolen, or damaged in the mail, and there is no guarantee that it will reach its destination. If you must send money via mail envelope, there are a few things you can do to make it more secure:

• Use a security envelope. Security envelopes are made with a special lining that makes it difficult to see what is inside the envelope. This can help to deter thieves who might be looking for cash.
• Disguise the money. If you are sending a large amount of money, you may want to disguise it inside a junk mail envelope or another type of envelope that is not likely to be opened.
• Send it registered mail. Registered mail is a more secure form of mail that requires a signature upon delivery. This can help to ensure that the money is not lost or stolen in transit.
• Purchase insurance. If you are sending a large amount of money, you may want to purchase insurance to protect yourself in case the money is lost or stolen.

Even if you take these precautions, there is still no guarantee that your money will be safe in the mail. If you have the option, it is always best to send money electronically or through a money transfer service.

Here are some alternatives to sending money via mail envelope:

• PayPal: PayPal is a popular online payment service that allows you to send money to anyone with an email address. It is a secure and convenient way to send money, and it is often cheaper than sending money through the mail.
• Venmo: Venmo is another popular online payment service that is similar to PayPal. It is a quick and easy way to send money to friends and family.
• Zelle: Zelle is a bank-to-bank money transfer service that allows you to send money to someone who has a bank account with the same bank as you. It is a fast and secure way to send money, and it is often free to use.
• Western Union: Western Union is a well-known money transfer service that has been in business for over 150 years. It is a reliable way to send money internationally, but it can be expensive.