El Capitan 10.11.6 email cannot send mail thru smtp after clean install

I was able to set up my emails after doing the step your showed. I then created my wife a user account on the iMac with a clean install just like mine. Same computer. I can get the pop or map to work but the smtp will not send at all..... I have tried every thing on the internet. I did notice when changing the smtp server setting with or without SSL, allow password over the internet, what ever you set them at if you change the port setting El Capitan will change it to some else. you have to change it 3 time for it to stick when you uncheck the auto setting to kept the right settings..

Can not get smtp to authorize my wife smtp. but it will pop or map. Crazy

Here is some log data with El Capitan email account set with SSL and pop works great but no smtp!

READ Sep 22 22:46:24.789 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK Capability list follows

TOP

USER

RESP_CODES

PIPELINING

EXPIRE NEVER

UIDL

IMPLEMENTATION Openwave Email vM.8.04.03.22 201-2389-100-167-20150619

READ Sep 22 22:46:24.800 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

.

WROTE Sep 22 22:46:24.800 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

USER hurdyj@suddenlink.net

READ Sep 22 22:46:24.810 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

.

WROTE Sep 22 22:46:24.810 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

USER hurdyj@suddenlink.net

READ Sep 22 22:46:24.826 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

+OK please send PASS command

WROTE Sep 22 22:46:24.826 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

PASS ************

READ Sep 22 22:46:24.838 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK please send PASS command

WROTE Sep 22 22:46:24.838 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

PASS ************

READ Sep 22 22:46:24.855 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

+OK hurdyj@suddenlink.net is welcome here

WROTE Sep 22 22:46:24.855 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

QUIT

READ Sep 22 22:46:24.867 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK hurdyj@suddenlink.net is welcome here

WROTE Sep 22 22:46:24.867 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

STAT

READ Sep 22 22:46:24.880 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf23e73910 -- thread:0x7fdf241571a0

+OK hurdyj@suddenlink.net InterMail POP3 server signing off.

READ Sep 22 22:46:24.894 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK 34 1991909

WROTE Sep 22 22:46:24.895 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

UIDL 1

READ Sep 22 22:46:24.922 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK 1 4aed4f4c-9611-11e7-b8c0-236cc546a9a8

WROTE Sep 22 22:46:24.923 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

UIDL 34

READ Sep 22 22:46:24.946 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK 34 f0db896a-a001-11e7-b921-53c6f6ca7b9b

WROTE Sep 22 22:46:24.947 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

QUIT

READ Sep 22 22:46:24.969 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:pop.suddenlink.net -- port:995 -- socket:0x7fdf24106c50 -- thread:0x7fdf24058fd0

+OK hurdyj@suddenlink.net InterMail POP3 server signing off.

READ Sep 22 22:46:44.766 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:smtp.suddenlink.net -- port:465 -- socket:0x7fdf23e93800 -- thread:0x7fdf23847d60

535 Authentication failed

WROTE Sep 22 22:46:44.788 [kCFStreamSocketSecurityLevelTLSv1_0] -- host:smtp.suddenlink.net -- port:465 -- socket:0x7fdf23e93800 -- thread:0x7fdf23847d60

AUTH PLAIN (*** 48 bytes hidden ***)

Yes! They would only reply me to a third-party tech-support for a fee.