We've been running a server for many years that uses an Indy SMTP client and OpenSSL to connect to a GMail server. This morning the connection failed with the following error:

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We've been running a server for many years that uses an Indy SMTP client and OpenSSL to connect to a GMail server. This morning the connection failed with the following error:

Error Connecting with SSL. error: 1409442E: SSL routines:SSL3_READ_BYTES:tlsv1 alert protocol version.

Anybody else having the same issue? Have Google changed their SSL policy or is this just a temporary issue?

Comments

  1. Martin SedgewickJuly 7, 2016 at 3:40 AM

    They might have upped the minimum to TLS 1.0 (SSL 3)
    That is what I would assume from the error.

    ReplyDelete
  2. Paul ThorntonJuly 8, 2016 at 1:17 PM

    Martin Sedgewick  - I updated the Indy OpenSSL version to TLS1.0 and now it works. Looks like Google have made a change.

    ReplyDelete

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