Re: [exim] Retry on 550 errors

Thanks Peter,

The narrow case is a situation where you are sure that the 550 error is
a mistake, that the mistake will be fixed, and that people will be
thankful that you didn't bounce the email during the mistake period.
This is a situation where you are sure that the recipient server should
be accepting email but because of some failure is mistakenly returning
550 errors.