Pb with wp mail smtp

Replies: 0

Hello,

I’ve just installed this pluggin, here is the message when I try to send a test email :
Versions:
WordPress: 4.9.6
WordPress MS: No
PHP: 7.0.27-0+deb9u1
WP Mail SMTP: 1.2.5

Params:
Mailer: mail
Constants: No

Server:
PHP.mail(): Yes
Apache.mod_security: No

Could you help me to fix it?
Best regards,
P.