echo "This is the message body and contains the message" | mailx -v -r "name.surname@gmail.com" -s "This is the subject" -S smtp="smtp.mail.com:587" -S smtp-use-starttls -S smtp-auth=login -S smtp-auth-user="name.surname@mail.com" -S smtp-auth-password="*****" -S ssl-verify=ignore -S nss-config-dir="/etc/pki/nssdb" name.surname@gmail.com

>>>Resolving host smtp.mail.com . . . done.
Connecting to 74.208.5.15:587 . . . connected.
220 gmx.com (mrgmxus002) Nemesis ESMTP Service ready
>>> EHLO ip-172-29-1-106.eu-west-1.compute.internal
250-gmx.com Hello ip-172-29-1-106.eu-west-1.compute.internal [52.213.120.236]
250-AUTH LOGIN PLAIN
250-SIZE 69920427
250 STARTTLS
>>> STARTTLS
220 OK
Error in certificate: Peer's certificate issuer has been marked as not trusted by the.
Comparing DNS name: "smtp.mail.com"
SSL parameters: cipher=missing, keysize=256, secretkeysize=256,
issuer=CN=thawte SSL CA - G2,O="thawte, Inc.",C=US
subject=CN=smtp.mail.com,O=1&1 Mail & Media Inc.,L=Chesterbrook,ST=Pennsylvania,C=US
>>> EHLO ip-172-29-1-106.eu-west-1.compute.internal
250-gmx.com Hello ip-172-29-1-106.eu-west-1.compute.internal [52.213.120.236]
250-AUTH LOGIN PLAIN
250 SIZE 69920427
>>> AUTH LOGIN
334 VXNlcm5hbWU6
>>> ZG9uZy5jaGVuQG1haWwuY29t
334 UGFzc3dvcmQ6
>>> Y2R+MTExMTEx
235 Authentication succeeded
>>> MAIL FROM:<chendong.jy@gmail.com>
550-Requested action not taken: mailbox unavailable
smtp-server: 550-Requested action not taken: mailbox unavailable
550 Sender address is not allowed.
smtp-server: 550 Sender address is not allowed.
"/root/dead.letter" 11/366
. . . message not sent.250-SIZE 69920427
250 STARTTLS
>>> STARTTLS
220 OK
Error in certificate: Peer's certificate issuer has been marked as not trusted by the.
Comparing DNS name: "smtp.mail.com"