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From: | Jan-Henrik Haukeland |
Subject: | Re: Patch: Add SMTP_AUTH-support |
Date: | Tue, 31 Jul 2007 16:47:25 +0200 |
On 31. jul. 2007, at 16.40, Jan-Henrik Haukeland wrote:
It's important to distinguish SSL and TLS. With SSL you use port 465 and start ssl before any data is transmitted. With TLS you use the default SMTP-port 25 and initiate SSL later as shown above.The monit socket sets SSL_VERSION_AUTO so SSL version or TLS should be transparent and automatically setup by OpenSSL during the handshake. So no need to distinguish between ssl|tls, at least that is the theory.
Ah I was too fast when replying and did not see that STARTTLS first speak plain text before negotiating SSL. Ok, in that case distinguish between ssl|tls _is_ important.
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