A utility library detect mail server settings by a email address.

<dependency>
	<groupId>com.homolo</groupId>
	<artifactId>mail-settings-detector</artifactId>
	<version>1.0.0</version>
</dependency>

MailSettings settings = MailSettingDetector.getInstance().detect("tsc@homolo.com");
String smtpHost = settings.getSmtpServer().getHost();
int smtpPort = settings.getSmtpServer().getPort();
boolean smtpSsl = settings.getSmtpServer().isSsl();

String imapHost = settings.getImapServer().getHost();
int imapPort = settings.getImapServer().getPort();
boolean imapSsl = settings.getImapServer().isSsl();

String popHost = settings.getPopServer().getHost();
int popPort = settings.getPopServer().getPort();
boolean popPort = settings.getPopServer().isSsl();