-X-Exim-Diagnostic: X-str; SMTP error from remote mail server after RCPT
- TO:<fred@undeliverable.org>: 550-no mate
- 550-123456789 100 123456789 a really long line to blow the limits
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- 123456789 600 123456789 123456789 123456789 123456789 123456789
- 123456789 123456789 123456789 123456789 700 123456789 123456789
- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 800
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