I cannot send e-mails from my Android smart phone anymore.  I have had my Hotmail account set up on my smart phone for years.  All of a sudden I cannot send e-mails but I can receive e-mails just fine.  When this occurs I get an error message on my phone stating it was "unable to send mail."  I have deleted the account from my phone twice and re-established the account and I still cannot resolve the issue...there seems to be a problem with the Outgoing server settings (will not connect to the Outgoing server).  I have tried several times to correct the account settings to fix the problem but I keep getting errors.  I know my user name and password so that is not the issue; I can log in online on my computer and access my Hotmail without a problem (send and receive emails).  I have played with every field under the Outgoing server setting and I cannot get it to work.  I either get an "authentification failed" error or a "cannot connect to the mail server" error.  This has been happening periodically for the past few months.  I called T-Mobile and they state it's not a problem with the phone.  I have attached some screen captures of the error message.