Use POP3 or I map to receive the various anomalies of the mail, really do not come out, look!

Use POP3 or IMAP to receive the various errors of e-mail, really do not come out, looking for expert guidance!!!!!
The 126,163,sina,139 are all right.

Hotmail:imap_open ("{pop.live.com:110/pop3}inbox", "xxx", "xxx");
Imap_errors () output: [0] = Connection failed to rds.live.com.nsatc.net,110:connection timed out

"{Imap.live.con:993/imap/ssl}inbox"
Imap_errors () output: [0] = = Can ' t connect to nj.redirect.local,993:connection timed out

QQ: "{Pop.qq.com:110/pop3}inbox"
Imap_errors () output: [0] = 454 POP???? Δ??????????????: http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=166 account was not ENABLED for POP ACCESS. For more DETAILS visit:http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=166
[1] = POP3 connection broken in response

"{Imap.qq.com:993/imap/ssl}inbox"
Imap_errors () output: [0] = = Can not authenticate to IMAP server:

Sohu: "{pop.sohu.com:110/pop3}inbox"
Imap_errors () output: [0] = Tls/ssl failure for Pop.sohu.com:SSL negotiation failed
"{Imap.sohu.com:993/imap/ssl}inbox"
Imap_errors () output: [0] = Tls/ssl failure for Imap.sohu.com:SSL negotiation failed

Gmail: "{pop.gmail.com:110/pop3}inbox"
Imap_errors () output: [0] = Connection failed to gmail-pop.l.google.com,110:connection timed out
[1] = = Connection Failed to gmail-pop.l.google.com,110:connection timed out
"{Imap.gmail.com:993/imap/ssl}inbox" can be received.

------Solution--------------------
The main problem is to understand the features supported by each messaging system, such as whether POP is supported or not, and whether SSL/TLS is supported and handled separately. Recommended use of Phpmailer, good package
------Solution--------------------
It is estimated that there is a problem with the mail server. I don't want you to play like that.

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