What type of authentication should I use?
Some email programs let you specify the authentication method - the typical methods are:
| Authentication Method | Compatibility |
|---|
| CRAM-MD5 | |
| DIGEST-MD5 | |
| LOGIN | [1] |
| PLAIN | [1] |
| NTLM | |
[1] We do NOT recommend using PLAIN / LOGIN authentication unless you are using a secure (SSL / TLS) encrypted connection.
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