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.

How do I verify a TLS SMTP certificate is valid in PHP?

To prevent man-in-the-middle attacks (a server pretending to be someone else), I would like to verify that the SMTP server …

php smtp ssl-certificate starttls
SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

I have a problem, i made a command "openssl s_client -connect server.server:143", and the error is: CONNECTED(00000003) 140719622096768:error:140770…

ssl certificate ssl-certificate starttls horde
Must issue a STARTTLS command first. - gsmtp ; Sending email with attachment using gmail account

I am quite new in programming, sorry for weak explanation. I have tried with almost all available answers in google. …

java email starttls
Warning: ldap_start_tls() [function.ldap-start-tls]: Unable to start TLS: Server is unavailable

Warning: ldap_start_tls() [function.ldap-start-tls]: Unable to start TLS: Server is unavailable in /var/www/html/testldap/index.php …

php starttls
Using StartTLS with LDAP from System.DirectoryServices

I'm trying to connect to an LDAP server which requires StartTLS, but having no luck - whenever I use either …

c# ldap directoryservices starttls
Unable to Send Email Using PHP

Preview: I have been trying to send an email using Moodle for a long time and finally decided to test …

php ssl smtp moodle starttls
cakephp 2.0 smtp email

I am trying to send a email message using CakePhp 2.0. in my controller i use this code (i know it's …

php smtp cakephp-2.0 starttls
cURL not respecting ciphers

I'd like to test the usage of certain ciphers with cURL, but it doesn't seem to respect the --ciphers option: …

ssl curl nginx starttls
How can I send an email via PHPMAILER without SSL - port 25?

I want to send an email without SSL using PHPMailer. I have enabled the debug mode so that I can …

php email phpmailer starttls
Java Netty Unknown SSL content type error

I'm trying to write a HTTP client using Netty 5.0.0.Alpha2 to connect to a proprietary server. I can only describe …

java ssl netty starttls