Error sending emails with postfix CentOS
postfix.service - Postfix Mail Transport Agent
Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled)
Active: active (running) since Dom 2015-11-29 08:22:05 EST; 2s ago
Process: 29710 ExecStop=/usr/sbin/postfix stop (code=exited, status=0/SUCCESS)
Process: 30051 ExecReload=/usr/sbin/postfix reload (code=exited, status=0/SUCCESS)
Process: 29728 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
Process: 29725 ExecStartPre=/usr/libexec/postfix/chroot-update (code=exited, status=0/SUCCESS)
Process: 29723 ExecStartPre=/usr/libexec/postfix/aliasesdb (code=exited, status=0/SUCCESS)
Main PID: 29800 (master)
CGroup: /system.slice/postfix.service
├─29800 /usr/libexec/postfix/master -w
├─29801 pickup -l -t unix -u
├─29802 qmgr -l -t unix -u
├─29803 trivial-rewrite -n rewrite -t unix -u
├─29804 error -t unix -u
├─29805 error -t unix -u
├─29806 bounce -z -n defer -t unix -u
├─29807 error -t unix -u
├─29808 bounce -z -n defer -t unix -u
├─29809 error -t unix -u
├─29810 bounce -z -n defer -t unix -u
├─29811 error -t unix -u
├─29812 bounce -z -n defer -t unix -u
└─29813 error -t unix -u
postfix/error[29811]: 45B7140C20: to=teste@yahoo.com.br, orig_to=<sendemail>, relay=none, delay=416, delays=415/0.11/0/0.03, dsn=4.0.0, status=SOFTBOUNCE (smtp.gmail.com:587)