Top "Starttls" questions

STARTTLS is an extension to plain text communication protocols, which offers a way to upgrade a plain text connection to an encrypted (TLS or SSL) connection instead of using a separate port for encrypted communication.

ldapsearch over ssl/tls doesn't work

I am trying to use ldapsearch over ssl/tls connection, but it doesn't work: ldapsearch -ZZ -d 5 -b "cn=Users,…

ldap starttls
JavaMail smtp properties (for STARTTLS)

JavaMail specifies a bunch of properties that can be set to configure an SMTP connection. To use STARTTLS it is …

java smtp jakarta-mail starttls
SMTP STARTTLS certificate negotitiation via telnet

I am trying to start tls in sendmail, but I do not know how to use certificate. Please suggest me …

smtp telnet starttls
STARTTLS vs SSL/TLS

Mailclients offer both settings, the STARTTLS and SSL/TLS. What is the difference between STARTTLS and SSL/TLS?

ssl smtp starttls
openssl to negotiate SSL encryption for STARTTLS

I'm using openssl to connect to an SMTP server normally (without encryption), send a STARTTLS command, negotiate the SSL encryption, …

ssl smtp openssl starttls
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhost, 25; timeout -1;

package jmail; import java.util.Date; import java.util.Properties; import javax.mail.Authenticator; import javax.mail.Message; import javax.…

java ssl jakarta-mail exchange-server starttls
Sending email from Python using STARTTLS

I want to send emails with a Python script by using Python's smtplib. The script should only send the email, …

python email encryption smtplib starttls
Java mail without ssl - PKIX path building failed:

I am using java mail to send emails over smtp. The smtp settings given below: Properties props = new Properties(); Object …

java smtp jakarta-mail starttls
Getting "MessagingException: Could not convert socket to TLS" when sending mail via SMTP

When using JavaMail to send a message via SMTP (+STARTTLS) the following exception is raised: javax.mail.MessagingException: Could not …

java smtp jakarta-mail starttls
How do I properly setup javamail to use STARTTLS?

When setting up my session I am setting the starttls.enable and .required properties but when the connection happens it …

java smtp jakarta-mail starttls