Outgoing SMTP with startSSL not working

  • Posted April 9, 2013

Hi All,

Incomming mail with startssl on imap is working. Sending with plain text password is working

I have check port: 587 this one is open.

When i do a telnet session everything is working when. What can the problem when i want use my mail client and it cant make a secure connection.

Using: Centos, Dovecot, Postfix


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Hi All, <br> <br>I was realy stupid… 1 little change and it was done: <br> <br>smtpd_use_tls = to <br> <br>to <br> <br>smtpd_use_tls = yes <br> <br>:)

nobody can help me :( …

It also did not work using mail client of the iPad

I use self signed cert. Using thunderbird as client. <br>Error msg: try translate from dutch to english <br> <br>Failed to send message. <br>An error occurred while sending e-mail: Failed to make a secure connection. With SMTP server using STARTTLS Switching STARTTLS for that server or contact your service provider.

What mail client are you using? <br> <br>Also do you have a self-signed or free cert? Depending on the mail client it may be rejecting it for that reason, but that is just a guess. <br> <br>Does the mail client return a specific error message that might have more info?