Question2Replies322Views MEDHAVIK Member since 2009 1 post Accenture Services Private Ltd. Posted: March 26, 2018Last activity: March 25, 2019 Closed Not able to send mails in 7.3.1 ,facing error "com.sun.mail.smtp.SMTPSendFailedException:518.104.22.168 .Must issue a STARTTLS command first.o61sm4593781.edb.88-gsmtpWhile configuring outbound email account, in Sender information, apart from filling values in FullName, UserID, From , SetPassword fields , following values are configured:Host: smtp.gmail.comPort:587Use SMTPS :uncheckedInspite of setting DSS "DisableSecuritySTARTTLS" value as true , the error exists.At runtime , getEmailSenderInfo gets called which opens the above outbound Email account and finally SendEmailNotification gets called where this error comes. Pega Academy ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Question, please write a new Question. Posted: 2 years agoSusmitaK TCS replied to MEDHAVIKI am getting the same issue at personal edition any help ! Posted: 1 year agoMOHAMMAD_PARWEJ Ernst & Young LLP replied to MEDHAVIKI am also facing the same issue in my personal edition. It would be great if someone can guide us on this.