SMTP proxy and insert header

Jader H. Silva jaderhs5 at
Wed Apr 24 15:37:28 UTC 2013

I'd like to configure nginx as a SMTP proxy and to insert a custom SMTP
header (e.g. "X-My-Script: bla") in the message before sending it to

Is there any way to configure nginx to insert a custom header in an email

Jader H. Silva
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