Can't send mail by office365

[Mrknowledge]

office365 force tlsv1.2, but there's no config option of mail.smtp.ssl.protocols setting. so can't send mail by office365

since there's no such config option, follow code should be added to azkaban-common/src/main/java/azkaban/utils/EmailMessage.java
props.put("mail.smtp.ssl.protocols", "TLSv1.2");