Unsecured application access does not appear
To avoid SPAM, gmail only allows as a rule to send emails from its gmail APP or from its web page. If we try from another product such as an IP camera to send an email automatically will not be sent. As I indicated this situation is normal and the idea is to avoid sending mass emails in an automatic way. To solve this problem you need to configure your gmail account in the security section and enable access to unsafe applications.
Once inside the settings, enable Allow access to unsafe applications. This will allow applications other than gmail such as the IP surveillance camera to use your email to send emails.
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Allowing access by less secure outlook applications
If an application or site doesn’t meet our security standards, we may block access to anyone trying to sign in to your account from that application or site. Less secure applications can make it easier for hackers to access your account, so blocking logins from these applications helps protect your account.
If your account has access from less secure applications turned off, you can turn it back on. However, we recommend that you only allow the most secure applications to access your account.
Activate applications in gmail
You can block login attempts from applications or devices that are insecure. Less secure applications do not use modern security standards, such as OAuth, which increases the risk of accounts and devices being compromised. Lock down these apps and devices to improve data security.
Note: When two-step verification is enabled on an account, access to less secure applications is automatically disabled unless users are in a configuration group that allows access to less secure applications. See the Manage access to less secure applications section below.
As the mandatory deployment option is no longer available, we recommend disabling access to unsecure applications now. Start using alternatives to insecure applications as soon as possible.
Third party gmail applications
The Internet offers us, every day, new tools that can both bring us happiness when performing our daily tasks, as well as inconveniences and headaches when it comes to devices and applications that use startup technologies that may be vulnerable.
But it also includes apps developed by other (competing) companies of Microsoft’s prestige. “The Outlook app for iOS and Android,” says its promotional advertising, “is the best mobile email app, regardless of the phone you use. It’s better than Mail and better than Gmail.”
The Internet continues to surprise us with new tools that facilitate our work and, in general, the opportunity to carry out an immense amount of remote communications, but it is necessary to take all the security measures that the Internet also makes available to us, if not to eliminate them, then to assess access to “less secure applications”.