-- Tentou mandar e-mail com o mailx?
-- Poste as linhas de log do mailx.
-- Monitore o log e poste a linhas do arquivo "/var/log/messages"

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# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core)

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# cat /opt/otrs/RELEASE
PRODUCT = OTRS
VERSION = 6.0.8
BUILDDATE = Tue Jun  5 01:21:56 CEST 2018
BUILDHOST = otrsbuild.otrs.com

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# perl /opt/otrs/bin/otrs.CheckModules.pl
  o Apache::DBI......................ok (v1.12)
  o Apache2::Reload..................ok (v0.13)
  o Archive::Tar.....................ok (v1.92)
  o Archive::Zip.....................ok (v1.30)
  o Crypt::Eksblowfish::Bcrypt.......ok (v0.009)
  o Crypt::SSLeay....................ok (v0.64)
  o Date::Format.....................ok (v2.24)
  o DateTime.........................ok (v1.04)
  o DBI..............................ok (v1.627)
  o DBD::mysql.......................ok (v4.023)
  o DBD::ODBC........................Not installed! (optional - Required to connect to a MS-SQL database.)
  o DBD::Oracle......................Not installed! (optional - Required to connect to a Oracle database.)
  o DBD::Pg..........................Not installed! Use: 'yum install "perl(DBD::Pg)"' (optional - Required to connect to a PostgreSQL database.)
  o Digest::SHA......................ok (v5.85)
  o Encode::HanExtra.................ok (v0.23)

  >> o IO::Socket::SSL..................ok (v1.94)

  o JSON::XS.........................ok (v3.01)
  o List::Util::XS...................ok (v1.27)
  o LWP::UserAgent...................ok (v6.26)

  >> o Mail::IMAPClient.................ok (v3.37)
    o IO::Socket::SSL................ok (v1.94)
    o Authen::SASL...................ok (v2.15)
    o Authen::NTLM...................ok (v1.09)

  o ModPerl::Util....................ok (v2.000010)
  o Net::DNS.........................ok (v0.72)
  o Net::LDAP........................ok (v0.56)
  o Template.........................ok (v2.24)
  o Template::Stash::XS..............ok (undef)
  o Text::CSV_XS.....................ok (v1.00)
  o Time::HiRes......................ok (v1.9725)
  o XML::LibXML......................ok (v2.0018)
  o XML::LibXSLT.....................ok (v1.80)
  o XML::Parser......................ok (v2.41)
  o YAML::XS.........................ok (v0.54)


------------------------------------------------------------
-- Log do Envio de e-mail pelo mailx
-- verifique se o envio funciona normalmente pelo mailx

mailx -vvv -s "Agora é `date`" \
-S smtp-use-starttls \
-S ssl-verify=ignore \
-S smtp-auth=login \
-S smtp=smtp://smtp.office365.com:587 \
-S from="centraldeservicos@teudom.com" \
-S smtp-auth-user="centraldeservicos@teudom.com" \
-S smtp-auth-password='SENHAFORTE' \
-S ssl-verify=ignore \
-S nss-config-dir="/etc/pki/nssdb/" \
-S sendcharsets="utf-8,iso-8859-1" \
emailquereceberaoteste@gmail.com

-- Depois do ENTER após o "emailquereceberaoteste@gmail.com", pressione CTRL+D

EOT
Null message body; hope that's ok
Resolving host smtp.office365.com . . . done.
Connecting to 52.97.67.194:587 . . . connected.
220 CP2PR80CA0134.outlook.office365.com Microsoft ESMTP MAIL Service ready at Thu, 28 Mar 2019 11:51:55 +0000

>>> EHLO domain.com
250-CP2PR80CA0134.outlook.office365.com Hello [200.223.251.34]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8

>>> STARTTLS
220 2.0.0 SMTP server ready
Error in certificate: Peer's certificate issuer is not recognized.
Comparing DNS name: "*.clo.footprintdns.com"
Comparing DNS name: "*.nrb.footprintdns.com"
Comparing DNS name: "*.hotmail.com"
Comparing DNS name: "*.internal.outlook.com"
Comparing DNS name: "*.live.com"
Comparing DNS name: "*.office.com"
Comparing DNS name: "*.office365.com"
SSL parameters: cipher=AES-256-GCM, keysize=256, secretkeysize=256,
issuer=CN=DigiCert Cloud Services CA-1,O=DigiCert Inc,C=US
subject=CN=outlook.com,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

>>> EHLO domain.com
250-CP2PR80CA0134.outlook.office365.com Hello [200.223.251.34]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-AUTH LOGIN XOAUTH2
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8

>>> AUTH LOGIN
334 VXNlcm5hbWU6
>>> ZGFpbHNvbi5hcmF1am9AdGNlLmFwLmdvdi5icg==
334 UGFzc3dvcmQ6
>>> IUBKTEdHQUVwMGQ4OTBpQCE=
235 2.7.0 Authentication successful
>>> MAIL FROM:<centraldeservicos@teudom.com>
250 2.1.0 Sender OK
>>> RCPT TO:<emailquereceberaoteste@gmail.com>
250 2.1.5 Recipient OK
>>> DATA
354 Start mail input; end with <CRLF>.<CRLF>
>>> .
250 2.0.0 OK <5c9cb55b.yb7NgxqzswS060E9%centraldeservicos@teudom.com> [Hostname=FR1P215MB0087.LAMP215.PROD.OUTLOOK.COM]
>>> QUIT
221 2.0.0 Service closing transmission channel

------------------------------------------------------------
-- verificar status do Deamon do OTRS
# su -c "/opt/otrs/bin/otrs.Console.pl Maint::Daemon::Summary" -s /bin/bash otrs

------------------------------------------------------------

-- monitorar o log
# tail -f /var/log/messages

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