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Incoming Mail Server
Authentication
Password
MD5 Challenge-Response
Kerberos Version 5 (GSSAPI)
Authenticated POP (APOP)
NTLM
None
Outgoing Mail Server
Outgoing Mail Server (Mac OS)
![Mac Mac](https://www.scrubly.com/blog/wp-content/uploads/2013/06/16_postImg.jpg)
Authentication
Password
MD5 Challenge-Response
Kerberos Version 5 (GSSAPI)
Authenticated POP (APOP)
NTLM
None
Incoming Mail Server
Authentication
Password
MD5 Challenge-Response
Kerberos Version 5 (GSSAPI)
Authenticated POP (APOP)
NTLM
None
Outgoing Mail Server (iOS)
Authentication
Password
MD5 Challenge-Response
Kerberos Version 5 (GSSAPI)
Authenticated POP (APOP)
NTLM
None
Note: Apple may collect and use your domain address (i.e. yahoo.com, gmail.com, etc.) for purposes of improving our products and services. Otherwise, your full email address will not be stored and will not be used by Apple or shared with any other entities.
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