Re: [Exim] 554 Transaction Failed and Hotmail

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Autor: Suresh Ramasubramanian
Data:  
Para: exim-users
Asunto: Re: [Exim] 554 Transaction Failed and Hotmail
Dicky Underwater [exim-users] <22/05/01 09:19 -0000>:

> We run a small mail server running exim 3.22. I have noticed in the logs
> that a number of hotmail addressed e-mails are failing with the error 554
> Transaction Failed.


Which just means hotmail's server is (as usual) overloaded and is therefore
refusing mail with permanent errors.

All this means is "wait for a hour or two and resend the mail"

> hotmail. If their is another reason why 554 Transaction Failed would appear
> in the logs. Why Microsoft would time-out the connection with a 500 error.


Several freemail services prefer issuing 550s for several (normally 4xx-able)
reasons, to save their bandwidth / disk space.

> If their is any way of getting my mail server to re-try even though it is a
> 500 error and Microsoft fault.


No. That would be violating RFCs. A 550 means "go away and dont retry the
same way". In hotmail's case, it means "have your user resend his mail a
hour later".

--
Suresh Ramasubramanian <--> mallet <at> efn <dot> org
EMail Sturmbannfuhrer, Lower Middle Class Unix Sysadmin