diff --git a/README.md b/README.md
index dc499f6..8453396 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,46 @@
-# Email warmup bot
+= Email warmup bot =
+
+== Installation ==
+
+```
+apt install php-cli php-imap php-mailparse php-net-smtp
+git clone https://gitpull.it/source/email-warmup-bot/
+git clone https://gitpull.it/source/php-imap-spooler/
+```
+
+```
+cd email-warmup-bot
+cp config-example.php config.php
+nano                  config.php
+```
+
+== Usage ==
+
+```
+./bot.php
+```
+
+== License ==
+
+```
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+```
diff --git a/autoload.php b/autoload.php
index 431adea..ac1fe62 100644
--- a/autoload.php
+++ b/autoload.php
@@ -1,15 +1,32 @@
 <?php
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 
-// TODO spl_* diocane
+// TODO spl_*
 require 'Net/SMTP.php';
 
 require 'include/class-MailboxCredentials.php';
 require 'include/class-MailboxCredentialsCollector.php';
 require 'include/class-NetSMTPSender.php';
 
 require 'config.php';
 
 require IMAPBOT_PATH_SPOOLER;
-
-// TODO
-// require 'stocazzo.php';
diff --git a/bot.php b/bot.php
index b586a99..c01d43f 100755
--- a/bot.php
+++ b/bot.php
@@ -1,201 +1,221 @@
 #!/usr/bin/php
 <?php
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 
 // use system signals
 pcntl_async_signals( true );
 
 // install new signal handlers
 pcntl_signal( SIGTERM, 'sig_handler' );
 pcntl_signal( SIGINT,  'sig_handler' );
 
 require 'autoload.php';
 
 // flag indicating that an error raised
 $error = false;
 
 // flag indicating that we can continue to scan again the mailbox
 $loop = true;
 
 // let's go
 message( "started" );
 
 do {
 	try {
 
 		foreach( SMTPCredentialsCollector::all() as $credentials ) {
 
 			// imap connection
 			$spooler = new reyboz\IMAPSpooler(
 				$credentials->imap,
 				$credentials->login,
 				$credentials->password
 			);
 
 			// set the callback for every e-mail
 			$spooler->setEmailHandler( function ( $body, $headers, $info ) use ( $credentials ) {
 
 				message( "connected" );
 
 				// complete message
 				$email_raw = $headers . $body;
 
 				// '<something@asd.it>'
 				$return_path = null;
 				$subject = null;
 
 				$parser = mailparse_msg_create(); // MUST be destroyed at the end of the script
 				mailparse_msg_parse( $parser, $email_raw );
 				$structure = mailparse_msg_get_structure( $parser ); // Ex. ["1", "1.1", "1.2"]
 				foreach( $structure as $part_label ) { // Search among each e-mail part
 					$part = mailparse_msg_get_part( $parser, $part_label ); // Parse a specified part
 					$part_data = mailparse_msg_get_part_data( $part ); // Get parsed part data, header and meta values
 					$headers = $part_data['headers'];
 
 					// asd
 					$subject = $headers['subject'] ?? null;
 
 					$return_path = $headers[ 'return-path' ]
 					            ?? $headers[ 'from' ]
 					            ?? null;
 
 					if( $return_path ) {
 
 						// sometime this is a damn array
 						if( is_array( $return_path ) ) {
 							$return_path = $return_path[0];
 						}
 
 						break;
 					}
 				}
 
 				// extract 'something@asd.it' from '<something@asd.it>' or 'Foo <something@asd.it>'
 				$return_path_email = null;
 				if( $return_path ) {
 					$return_path_data = mailparse_rfc822_parse_addresses( $return_path );
 					foreach( $return_path_data as $email_data ) {
 
 						// address infos
 						$return_path_address = $email_data['address'];
 						break;
 					}
 
 				}
 
 				if( $return_path_address ) {
 
 					$reply_message = "Ciao bello!\n";
 					$reply_message .= reply_email( $body );
 
 					message( sprintf(
 						"trying to send email from %s to $return_path_address",
 						$credentials->from
 					) );
 
 					//TODO: in reply to
 					// https://stackoverflow.com/questions/45690336/do-all-email-clients-use-in-reply-to-field-in-email-header
 
 
 					$result = NetSMTPSender::send( $credentials, $return_path_address, "Re: $subject", $reply_message, $additional_headers = '', $more = '' );
 					if( $result ) {
 						message( sprintf(
 							"sent email to %s",
 							$return_path_address
 						) );
 					}
 
 					$delete = true;
 				} else {
 					$delete = false;
 				}
 
 				return $delete;
 			} );
 
 			// open the connection
 			$spooler->open();
 
 			// just process all and then quit
 			$spooler->processAll();
 
 			// close the connection
 			$spooler->close();
 
 			message( "wait" );
 
 			// wait some time
 			sleep( IMAPBOT_CYCLE_SLEEP );
 
 		}
 
 	} catch( Exception $e ) {
 
 		printf(
 			"SMTP bot error (%s): %s\n",
 			get_class( $e ),
 			$e->getMessage()
 		);
 
 		printf(
 			"  Trace: %s\n",
 			$e->getTraceAsString()
 		);
 
 		// we can't just stop looping because sometime the user sends a wrong command and we get an Exception
 		// $loop  = false;
 
 		$error = true;
 	}
 
 } while( $loop );
 
 /**
  * Operating system signal handler
  *
  * @param $signo   int
  * @param $siginfo mixed
  */
 function sig_handler( $signo, $siginfo ) {
 
 	// stop looping
 	$GLOBALS['loop'] = false;
 
 	// eventually close the spooler
 	$GLOBALS['spooler']->close();
 
 	// just warn about this signal
 	message( "quit after SIG $signo" );
 
 	// quit
 	if( $GLOBALS['error'] ) {
 		exit( 1 );
 	} else {
 		exit( 0 );
 	}
 }
 
 /**
  * Print a message to standard output with a date
  *
  * @param string $message
  */
 function message( $message ) {
 	printf( "[%s] %s\n", date( 'c' ), $message );
 }
 
 function strippa_minchia( $message ) {
 	throw new Exception( "to be implemented asd to strip the minch" );
 }
 
 /**
  * asd
  * >asd
  */
 function reply_email( $message ) {
 
 	$message = trim( $message );
 
 	$message = str_replace( "\n", "\n>", ">$message" );
 
 	return $message;
 }
diff --git a/include/class-MailboxCredentials.php b/include/class-MailboxCredentials.php
index a8aa974..da67dfb 100644
--- a/include/class-MailboxCredentials.php
+++ b/include/class-MailboxCredentials.php
@@ -1,43 +1,63 @@
 <?php
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 
 class MailboxCredentials {
 
 	public $from;
 	public $host;
 	public $port;
 	public $auth;
 	public $debug;
 	public $login;
 	public $name;
 	public $imap;
 	public $password;
 
 	/**
 	 * Constructor
 	 */
 	public function __construct() {
 		// asd non ho voglia
 	}
 
 	public static function createFromArgs( $args ) {
 
 		$asd = new self();
 
 		$asd->host     = $args['host'];
 		$asd->port     = $args['port'];
 		$asd->from     = $args['from'];
 		$asd->login    = $args['login'];
 		$asd->password = $args['password'];
 		$asd->auth     = $args['auth'];
 		$asd->debug    = $args['debug'] ?? false;
 		$asd->name     = $args['name']  ?? $args['from'];
 		$asd->imap     = $args['imap'];
 
 		return $asd;
 	}
 
 	public function isDebug() {
 		return $this->debug ?? false;
 	}
 
 }
diff --git a/include/class-MailboxCredentialsCollector.php b/include/class-MailboxCredentialsCollector.php
index ad23d1c..ec6da88 100644
--- a/include/class-MailboxCredentialsCollector.php
+++ b/include/class-MailboxCredentialsCollector.php
@@ -1,15 +1,35 @@
 <?php
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 
 class MailboxCredentialsCollector {
 
 	private static $all = [];
 
 	public static function addFromArgs( $args ) {
 		self::$all[] = MailboxCredentials::createFromArgs( $args );
 	}
 
 	public static function all() {
 		return self::$all;
 	}
 
 }
diff --git a/include/class-NetSMTPSender.php b/include/class-NetSMTPSender.php
index 4d19103..61517cf 100644
--- a/include/class-NetSMTPSender.php
+++ b/include/class-NetSMTPSender.php
@@ -1,116 +1,135 @@
 <?php
-
+# Copyright (c) 2021 Valerio Bozzolan (https://boz.reyboz.it)
+# PHP email warmup bot
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
 
 function error_wp_net_smtp( $title, $message ) {
 	throw new Exception( "$title: $message" );
 }
 
 class NetSMTPSender {
 
 	public static function send( $credentials, $to, $subject, $message, $additional_headers = '', $more = '' ) {
 
 		// Force array
 		if( ! is_array( $to ) ) {
 			$to = [ $to ];
 		}
 
 		$socket_options = [
 			'ssl' => [
 				'verify_peer_name' => false,
 				'verify_peer'      => false,
 			],
 		];
 
 		if( ! ($smtp = new Net_SMTP( $credentials->host, $credentials->port, null, false, 0, $socket_options ) ) ) {
 			error_wp_net_smtp(
 				'Unable to instantiate Net_SMTP object',
 				$smtp->getUserInfo()
 			);
 			return false;
 		}
 
 		if( $credentials->isDebug() ) {
 			$smtp->setDebug( true );
 		}
 
 		if( PEAR::isError( $e = $smtp->connect() ) ) {
 			error_wp_net_smtp(
 				'Error connect',
 				$e->getMessage()
 			);
 			return false;
 		}
 
 		if( PEAR::isError( $e = $smtp->auth( $credentials->login, $credentials->password, $credentials->auth, true, '', true ) ) ) {
 			error_wp_net_smtp(
 				'Error auth',
 				$e->getMessage()
 			);
 			return false;
 		}
 
 		if( PEAR::isError( $smtp->mailFrom( $credentials->from ) ) ) {
 			error_wp_net_smtp(
 				'Error set from',
 				$res->getMessage()
 			);
 			return false;
 		}
 
 		foreach( $to as $i => $single_to ) {
 			if( filter_var( $single_to, FILTER_VALIDATE_EMAIL ) === false ) {
 				unset( $to[$i] );
 
 				error_wp_net_smtp(
 					'Wrong e-mail address stripped out',
 					$single_to
 				);
 				continue;
 			}
 
 			if( PEAR::isError( $res = $smtp->rcptTo( $single_to ) ) ) {
 				error_wp_net_smtp(
 					'Error set To',
 					$res->getMessage()
 				);
 				return false;
 			}
 		}
 
 		if( count( $to ) === 0 ) {
 			error_wp_net_smtp( 'No email sent', 'no addresses' );
 			return false;
 		}
 
 		$headers = [
 			'MIME-Version' => '1.0',
 			'Subject'      => $subject,
 			'To'           => implode( ',', $to ),
 			'From'         => sprintf(
 				'%s <%s>',
 				$credentials->name,
 				$credentials->from
 			),
 			'Content-Type' => sprintf(
 				'text/plain;charset=%s',
 				'utf-8'
 			),
 			'X-Mailer'     => 'Net/SMTP.php via WordPress in Debian GNU/Linux asd',
 		];
 
 		$merge = [];
 		foreach( $headers as $header => $value ) {
 			$value = trim( $value );
 			$merge[] = sprintf('%s: %s', $header, $value);
 		}
 		$headers = $additional_headers . implode( "\r\n" , $merge );
 
 		$error = PEAR::isError( $smtp->data( "$headers\r\n$message" ) );
 
 		$smtp->disconnect();
 
 		return ! $error;
 
 	}
 }