220 ak47 ESMTP ready
hello: 250-ak47
250-AUTH PLAIN LOGIN
250-SIZE 52428800
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-SMTPUTF8
250 STARTTLS
starttls: 220 2.0.0 Start TLS
hello: 250-ak47
250-AUTH PLAIN LOGIN
250-SIZE 52428800
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 SMTPUTF8
from: 250 2.0.0 OK
to: 550 5.7.1 Relaying denied
The following SMTP error was encountered: 550 5.7.1 Relaying denied
quit: 221 See you later. Yours truly, Mailgun
Unable to send email using PHP SMTP. Your server might not be configured to send mail using this method.
Date: Thu, 16 Aug 2018 18:01:00 +0200
From: "Site Name" <contact@domain.com>
Return-Path: <contact@domain.com>
To: contact@domain.com
Subject: =?UTF-8?Q?Message=20from=20SiteName?==?UTF-8?Q?cud?=
Reply-To: <contact@domain.com>
User-Agent: CodeIgniter
X-Sender: contact@domain.com
X-Mailer: CodeIgniter
X-Priority: 1 (Highest)
Message-ID: <5b759fbc2c3ea@domain.com>
Mime-Version: 1.0