On 11/23/20 9:49 AM, maciejm wrote:
Hi
Thanks for replay I found "RFC 822 Message-ID is not required"
Probably "problem" is in configurations in some clients.

I used to have a client who was not getting emails from one of his friends. Turned out that the friend's client/MUA was not adding the message ID. After the first message was accepted all of the rest were silently dropped as duplicates due to a very standard procmail recipe:

:0 Wh: msgid.lock
| formail -D 65536 $HOME/.msgid.cache

In other words, the message ID "" was considered a duplicate after the first one.

--
D'Arcy J.M. Cain
System Administrator, Vex.Net
http://www.Vex.Net/ IM:da...@vybenetworks.com
VoIP: sip:da...@vex.net

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