That means your account has been hacked. If your account has been hacked, someone can send mails from it. The mails can be of any vulgar topic too.
Yes, it is illegal to send unsolicited emails without permission, as it violates anti-spam laws.
It is unclear if academia-mail.com is spamming users with unsolicited emails.
Spam.
Yes, it is illegal to email someone without their consent under certain circumstances, such as sending unsolicited commercial emails (spam) or harassing emails. This is covered by laws such as the CAN-SPAM Act in the United States.
An antispam gateway protects your computer by filtering through your email. It prevents unwanted and unsolicited emails that could contain virus', tracking software, and trojan links.
Beware of unsolicited popups and emails. Be careful not to give out personal information on the internet and that your computer is protected by anti-virus software.
Types of intrusive contacts can include unsolicited phone calls, unsolicited text messages, unsolicited emails, and unwanted physical visits. These contacts are typically unwanted and may be considered invasive or harassing.
Usually the emails that are automatically categorized as "Junk" are advertising a good or service.
Computer spam is most commonly found in the form of emails. Various websites will get a hold of email addresses and randomly send out unwanted and unsolicited emails. The types of content spammed includes male and female enhancement products, weight loss products, diploma mills offering fake degrees, investment schemes, dating sites, and adult websites.
spam
Emails are free of cost from the side of Gmail. These Emails can be sent or received without any cost. The only charges are of the internet connection.
A computer generally allows to send Emails. There is no restriction which makes to stop emails. Gmail is such a kind of Email service by Google.