When logging in to your account, a safe way is to log in to the account on the same computer or mobile phone through the same browser. If you frequently sign in to your account on different devices through different browsers, your account activity may be considered suspicious and the service provider will disable your account.
The AUTH Command The AUTH command is an ESMTP command (SMTP service extension) that is used to authenticate the client to the server. The AUTH command sends the clients username and password to the e-mail 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.
Sep 25, 2015 · EHLO testing 250-mail.localhost.localdomain 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-c 250–AUTH=DIGEST-MD5 CRAM–MD5 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN From the above output we can see that the server is capable of AUTH DIGEST-MD5 CRAM–MD5 login authentication.
Jul 09, 2008 · I have been following the same tutorial and "ehlo local host" produces the following output: 250-AUTH PLAIN LOGIN CRAM-MD5 NTLM DIGEST-MD5 250-AUTH=PLAIN LOGIN CRAM-MD5 NTLM DIGEST-MD5
Aug 26, 2019 · S: 250 AUTH LOGIN PLAIN CRAM-MD5 C: AUTH PLAIN S: 334 C: vHRjyADROPsdSDIROu= S: 235 Authentication successful. Alternatively, the client can submit the credentials together with the AUTH PLAIN command in one single line: S: 250 AUTH LOGIN PLAIN CRAM-MD5 C: AUTH PLAIN vHRjyADROPsdSDIROu= S: 235 Authentication successful
Nov 07, 2011 · If the session isn’t encrypted, LOGIN authentication mechanism is susceptible to the same problems that PLAIN authentication mechanism is susceptible to. AUTH CRAM–MD5. Let us take a look at the CRAM–MD5 authentication mechanism now. When the client selects the CRAM–MD5 authentication mechanism, the server sends a base64 encoded challenge like …
Jan 10, 2017 · S: 250-SIZE 255555555 S: 250 AUTH LOGIN PLAIN CRAM–MD5 C: auth login S: 334 VXNlcm5hbWU6 C: avlsdkfj S: 334 UGFzc3dvcmQ6 C: lkajsdfvlj S: 535 authentication failed (#5.7.1) From all the ESMTP Authentication mechanisms the offered, the client selects ‘auth login‘.
250-securemail.chicagonettech.com Hello [XXX.XXX.XXX.XXX] 250-SIZE 52428800 250–AUTH CRAM-MD5 250-STARTTLS 250-8BITMIME 250 OK with the exception that we’ve completely disabled the plain text login capabilities
Dec 27, 2016 · 3. Apart from best recommendations for SMTP, here is your available list: LOGIN, PLAIN: Password is transferred in clear-text. CRAM–MD5: Weak against chosen plaintext and has password storage issues. DIGEST-MD5: Better than CRAM–MD5 as it is stronger against chosen plaintext attack and permits the use of third party authentication servers.
Nov 23, 2017 · Yeah this is definitely broken. I can’t authenticate with CRAM–MD5 at all via telnet. note, on one of our other devices, when the AUTH fails via CRAM–MD5 it automatically re-tries with AUTH–PLAIN and succeeds using the same credentials. Unfortunately, not all our devices support this feature, so we have to bug you guys:)
There are three authentication mechanisms widely used for SMTP Authentication: Login, Plain, and Cram-MD5. AUTH LOGIN. The most common ‘AUTH LOGIN’ mechanism looks like this. S: 220 esmtp.example.com ESMTP C: ehlo client.example.com S: 250-esmtp.example.com S: 250-PIPELINING S: 250-8BITMIME S: 250-SIZE 255555555 S: 250 AUTH LOGIN PLAIN CRAM-MD5 C: auth login