> On Tue, 8 Jan 2002, Stephane Leclerc wrote:
>
>> When I send a mail to the host the host part is rewrited and I got unknown
>> local-part.
>
> You send using some other MTA than exim, don't you?
>
>> I try to figure the problem and to solve it. For best management, I would
>> like to use CNAME instead of A records.
>
> You should use MX records instead of CNAME. Some (imho broken, others
> say correct) MTAs rewrite the recipient host if it's a CNAME.
>
> RFC 1123 and 2821 disagree at this point, 1123 forbids the use of CNAMEs
> in email addresses, 2821 allows it. Since 2821 updates 1123 I consider
> it authoritative.
Yes, true.
It seems that Exim well manage this but if the sender smtp server is
Postfix, no. This is the case for nerim.net.
It seems that I have no way to solve this problem. I can't say to people to
do not use Postfix... and should continue to use A record.
Stef...
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