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Is SMTP authentication encrypted?
About SSL Encryption and SMTP Authentication SSL encryption is also supported by our mail server when mail servers on the other end (Message Transport Agents or MTAs) also support encryption; but the majority of mail servers out there do not yet support SSL for SMTP-TLS.
What is MD5 challenge?
In EAP MD5-Challenge, the RADIUS server sends a random challenge to the client. The client forms an MD5 hash of the user’s password and the challenge and sends the result back to the server. The server then validates the MD5 hash using the known correct plaintext password from the user database.
What is plain authentication?
Plain-text authentication assumes that the user name and password are submitted to the server in clear text. Since the password is sent in clear text, any intermediate router on the Internet can potentially see it. Therefore, this authentication method is only considered secure when using an encrypted connection.
What is AUTH plain LOGIN?
The AUTH command is an ESMTP command (SMTP service extension) that is used to authenticate the client to the server. AUTH can be combined with some other keywords as PLAIN, LOGIN, CRAM-MD5 and DIGEST-MD5 (e.g. AUTH LOGIN) to choose an authentication mechanism.
Is Cram-MD5 secure?
In conclusion: CRAM-MD5 is not secure for this purpose at all. Your provider has no excuse for storing passwords in plaintext, the issue here is just their reluctance to implement a better solution. It gives no protection against MITM since an attacker could forward the challenge to the client.
How does EAP MD5 work?
EAP-MD5 is a password-based and one-way authentication protocol, often used in wireless X802. 1 networks and PPP connections [3]. This protocol consists of three components, the applicant, the identity authentication (WAP) and the server (RADIUS), in which only the identity of the applicant is authenticated (Figure 1).
What do you need for the plain authentication to a database?
Passwords are one of the basic forms of authentication. A user must provide the correct password when establishing a connection to prevent unauthorized use of the database. In this way, users attempting to connect to a database can be authenticated by using information stored in that database.
What is a SMTP account password?
Your SMTP Server, Port and User depend on the mail service your company is using. For example, if your company is using gmail as mails service then you will be able to find all SMTP settings here. The password is either from your email or from your domain.
Is there a way to enable CRAM-MD5 for SMTP?
Enabling CRAM-MD5 for SMTP is analogous to implementing a challenge-response scheme in Javascript before transmitting login credentials to a website. (You can occasionally see that technique in router interfaces which don’t provide HTTPS but it’s not very common.)
How is the password stored in CRAM-MD5?
So if the server has to support HMAC-MD5, it has to store the password in plaintext. (The server can encrypt the password, but since it also has to know the encryption key, that doesn’t help.) CRAM-MD5 was designed to avoid having the password transit in cleartext.
When is it bad to use Cram MD5?
CRAM-MD5 is bad if the password is one that a human can remember, because most human passwords can be cracked by brute force and are valuable beyond that one server as they are often reused. If using SSL, there is little value in using CRAM-MD5 as opposed to having the client send the password over the SSL connection.
What kind of SMTP authentication does surgemail use?
SurgeMail supports CRAM-MD5 SMTP authentication, but ONLY when using the NWAuth authentication module. To enable CRAM-MD5 set the g_smtp_cram_enable setting and restart SurgeMail.