We have problems with bounced mail, certain domains do not reach the receiver from us. Can not get a rule set up on some network / IP addresses or domains that so that the email arrived yet so it does not bother to check if the user is correct. They bouncer back even though you have set Exceptions rules.
2010-11-03 15:55:45 SMTP error from remote mail server after RCPT TO:: host 95.xx [95.xx]: 550-Verification failed for \n550-No Such User Here\n550 Sender verify failed
2010-11-03 15:55:45 j-a@domain.com R=static_route_hostlist T=static_smtp: SMTP error from remote mail server after RCPT TO:: host 95.xx [95.xx]: 550-Verification failed for \n550-No Such User Here\n550 Sender verify failed
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