Re: [mailop] Weird 'tempfail too many recipients' bug/incompatibility EXIM => Postfix?

2021-01-19 Thread Graeme Fowler via mailop
On 19 Jan 2021, at 08:13, Benoit Panizzon via mailop  wrote:
> When it comes to the first recipient being tempfailed, in the postfix
> logs, I see that recipient being rejected, but at the same time the
> EXIM log show a 200 OK message for that same recipient.

Given that Exim logs what the far end gives back to it, I suspect you're 
looking at the Postfix end.

I'm not aware of any specific bugs in either piece of software that would do 
that, though, so perhaps it's a configuration issue - is the rejection 
happening one step further on in the RCPT loop?

Graeme
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[mailop] Weird 'tempfail too many recipients' bug/incompatibility EXIM => Postfix?

2021-01-19 Thread Benoit Panizzon via mailop
Hi Gang

I wonder of anyone else has seen this kind of this issue between EXIM
and Postfix.

Sender uses Exim, Version unknown
Recipient uses Postfix 3.1.0

Email is sent to a lot of recipients. Postfix is configured to only
accept a certain amount of recipients.

Surplus recipients get rejected by: 452 4.5.3

When it comes to the first recipient being tempfailed, in the postfix
logs, I see that recipient being rejected, but at the same time the
EXIM log show a 200 OK message for that same recipient.

Postfix of course does NOT deliver the email to that recipient it
tempfailed and EXIM never retires that recipient because it got a 200
OK.

I have not been able to sniff such a connection yet and I guess I will
have to reproduce the issue to see what really happens 'on the wire'

But I wonder if such a bug is known with either EXIM or Postfix.

Mit freundlichen Grüssen

-Benoît Panizzon-
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