SpringBoot - sending email throught smtp jakarta

I have this class that is sending emails ok from the same server using localhost, but when sending emails from another IP, and setting the host like this:

@Service
@Slf4j
@Transactional(readOnly = true)
public class MailMessageService extends SimpleMailMessage {

    static Properties prop = new Properties();

    public MailMessageService() {
        super();
    }


    public void sendMessage(String subject, String body, String mailTo, String pathToFile) throws MessagingException, IOException {


        log.info("Sending email to: *{}* ", mailTo);

        Session session = Session.getInstance(prop, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("info", "oT2ct2UUii87");
            }

        });


        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("info@taradell.com.com"));

        message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(mailTo));
        message.setSubject(subject);

        MimeBodyPart mimeBodyPart = new MimeBodyPart();
        mimeBodyPart.setContent(body, "text/html; charset=utf-8");

        Multipart multipart = new MimeMultipart();
        multipart.addBodyPart(mimeBodyPart);

        log.info("pathToFile: *{}* ", pathToFile);

        if (pathToFile != null) {
            MimeBodyPart attachment = new MimeBodyPart();
            attachment.attachFile(pathToFile);
            multipart.addBodyPart(attachment);
        }

        log.info("Setting content");

        message.setContent(multipart);

        log.info("Sending message {} ", message);

        Transport.send(message);


    }


    public void sendMessage(String subject, String body, String mailTo) throws MessagingException, IOException {

        sendMessage(subject, body, mailTo, null);

    }


    @PostConstruct
    public void initProperties() {
        prop.put("mail.smtp.auth", true);
        prop.put("mail.smtp.starttls.enable", "true");
        prop.put("mail.smtp.host", "172.105.90.58");
        prop.put("mail.smtp.port", "25");
        prop.put("mail.smtp.ssl.trust", "172.105.90.58");
    }
}

I have this errors:

jakarta.mail.MessagingException: Could not convert socket to TLS
    at org.eclipse.angus.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2173)
    at org.eclipse.angus.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:741)
    at jakarta.mail.Service.connect(Service.java:367)
    at jakarta.mail.Service.connect(Service.java:225)
    at jakarta.mail.Service.connect(Service.java:174)
    at jakarta.mail.Transport.send0(Transport.java:232)
    at jakarta.mail.Transport.send(Transport.java:102)

Looking at your error "Could not convert socket to TLS", you're having a TLS negotiation issue with your SMTP server. Here's how to fix it:

Try a different port with proper TLS settings:

prop.put("mail.smtp.port", "587"); // for STARTTLS

Or just copy/paste this:

@PostConstruct
public void initProperties() {
    prop.put("mail.smtp.auth", "true");
    prop.put("mail.smtp.starttls.enable", "true");
    prop.put("mail.smtp.host", "live.smtp.mailtrap.io");
    prop.put("mail.smtp.port", "587");
}

// In your Authenticator:
return new PasswordAuthentication("username", "password");

Disclaimer: I've crafted the answer based on this tutorial.