Why does sendmail append hostname to the email address?
Issue
- Sendmail appends hostname to the email address when recipient address is enclosed in double quotes.
- When email is sent from a machine with hostname "host.example.com" to "root@example.com", headers show recipient ID as "root@example.com"@host.example.com.
Environment
- Red Hat Enterprise Linux 5
- sendmail-8.13.8-2.el5
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