How to set up msmtprc for Yandex?

Question

PHP

msmtprc installed

[email protected]:~$ msmtp --version
msmtp version 1.4.31
Platform: x86_64-pc-linux-gnu
TLS/SSL library: GnuTLS
Authentication library: GNU SASL
Supported authentication methods:
plain scram-sha-1 cram-md5 gssapi external digest-md5 login ntlm 
IDN support: enabled
NLS: enabled, LOCALEDIR is /usr/share/locale
Keyring support: none
System configuration file name: /etc/msmtprc
User configuration file name: /home/ubuntu/.msmtprc

Copyright (C) 2013 Martin Lambers and others.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

In php.ini it is written
sendmail_path ="/usr/bin/msmtp -t"
In /etc/msmtprc

defaults
tls on
tls_starttls on
tls_certcheck off
logfile /var/log/msmtp.log

In /home/ubuntu/.msmtprc

defaults
tls on
tls_starttls on
tls_certcheck off
logfile /var/log/msmtp.log

account dssu
host smtp.yandex.ru
port 587
auth on
keepbcc on
user [email protected]
password ******
from [email protected]

account default : dssu

testing

<?php var_dump(mail("[email protected]", "Yandex", 'TESTER', "From: [email protected]\r\n")); ?>

Result
bool(false)
Why doesn't it work?

Answer 1

Here is my working config:

host smtp.yandex.ru
port 587
from [email protected]
keepbcc on
auth on
user [email protected]
password 12345678
tls on
tls_starttls on
tls_certcheck off

/etc/msmtprc is a symlink to this config.