Moin,
wie schon angedroht habe ich nun mithilfe von Chatgpt einen Mailserver aufgesetzt. Debian Trixie, Postfix und Dovecot.
Ich würde mich freuen wenn jemand mich in die Richtung schubsen kann wo ich den Fehler finde. Thanks. 
Abfällige Bemerkungen über KI Vibe coding sind natürlich auch OK und totally respected.
Senden kann ich:
testmail
To: max mustermann <max@example.de>
X-Spam-Level: *
X-Rspamd-Queue-Id: 6AC8E600B7
X-Mors-Domain: example.de
X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on mxe986.netcup.net
X-Rspamd-Server: rspamd-worker-8404
X-Mors-Enabled: yes
Return-Path: <info@example.de>
Mime-Version: 1.0
Authentication-Results: mxe986; dkim=pass header.d=example.de; spf=pass (sender IP is 00.000.000.000) smtp.mailfrom=info@example.de smtp.helo=mail.example.de
<84565.1766827701.1@machine>
X-Mors-Hosting: hosting216891
<84566.1766827701@machine>
X-Mailer: MH-E 8.6+git; nmh 1.8; Emacs 30.2
Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=example.de; s=mail; t=1766827702; bh=bj74/rslR0bn/dJ9cdn2gpaxFeMo+U6NOpehHz71RU4=; h=From:To:Subject:Date:From; b=gM1l985E3LvbPmK09OpngzM8uin8yPAoOdgySyxv3j4Lbf7M59zP/4EY5s6ZsaMlE RaFsDhABCE3GynE9U/iLnnPzCL01W/ludSLZavdED47UnrHaGfTf/lwErDhP3cZ/LZ uJgyzfjzST8KR6WaKZwX/McZL8hD8+xklHxDwWGX4eecdHy14gClo3KYs46FUiEidR Xd8H4O13IJAE9DTAzt6vJffVrh24F/UygTSTxtAo7HKneD2yfPEIwqoYlIq+jKSigS 1xpju3MqyNfPJgljE+EIcgQNknjq1uFt0wyxYcYwIKX9nAYbkffxj+8wjP7K5SGsVy tT6Fw6NvNAK8w==
X-Spamd-Result: default: False [5.00 / 15.00]; HFILTER_HOSTNAME_UNKNOWN(2.50)[]; RBL_SENDERSCORE(2.00)[00.000.000.000:from]; MID_RHS_NOT_FQDN(0.50)[]; BAD_REP_POLICIES(0.10)[]; MIME_GOOD(-0.10)[text/plain]; DBL_BLOCKED_OPENRESOLVER(0.00)[nobody.yourvserver.net:rdns,mail.example.de:helo]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_ALLOW(0.00)[example.de:s=mail]; MIME_TRACE(0.00)[0:+]; DMARC_POLICY_ALLOW(0.00)[example.de,reject]; RCVD_COUNT_TWO(0.00)[2]; DKIM_TRACE(0.00)[example.de:+]; TO_DN_ALL(0.00)[]; RCVD_TLS_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; R_SPF_ALLOW(0.00)[+ip4:00.000.000.000]; RCPT_COUNT_ONE(0.00)[1]; PREVIOUSLY_DELIVERED(0.00)[max@example.de]; RCVD_VIA_SMTP_AUTH(0.00)[]
X-Mors-User: hosting216891
X-Spam-Status: No, score=1.3 required=7.0 tests=BODY_SINGLE_WORD,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RDNS_NONE autolearn=no autolearn_force=no version=4.0.1
Content-Type: text/plain; charset="us-ascii"
Received-Spf: pass (mxe986: domain of example.de designates 00.000.000.000 as permitted sender) client-ip=00.000.000.000; envelope-from=info@example.de; helo=mail.example.de;
Delivered-To: max@example.de
X-Original-To: max@example.de
Received: from mail.example.de (unknown [00.000.000.000]) by mxe986.netcup.net (Postfix) with ESMTPS id 6AC8E600B7 for <max@example.de>; Sat, 27 Dec 2025 10:28:23 +0100 (CET)
Received: from localhost (unknown [IPv6:2a02:8108:d15:b000:8e3:1515:b5af:da9c]) by mail.example.de (Postfix) with ESMTPSA id 5AB69444C6 for <max@example.de>; Sat, 27 Dec 2025 10:28:22 +0100 (CET)
aber an die adresse schicken geht noch nicht bzw die werden von fetchmail nicht gefunden.
fetchmail: 6.4.38 querying mail.example.de (protocol POP3) at Sat Dec 27 10:38:10 2025: poll started
fetchmail: Trying to connect to 2a03:3000:6:547a:c882:bbff:fc3r:dc33/995...connected.
fetchmail: Loaded OpenSSL library 0x30500040 newer than headers 0x30300010, trying to continue.
fetchmail: SSL verify callback depth 2: verify_ok == 1, err = 0, ok
fetchmail: Certificate chain, from root to peer, starting at depth 2:
fetchmail: Issuer Organization: Internet Security Research Group
fetchmail: Issuer CommonName: ISRG Root X1
fetchmail: Subject CommonName: ISRG Root X1
fetchmail: SSL verify callback depth 1: verify_ok == 1, err = 0, ok
fetchmail: Certificate at depth 1:
fetchmail: Issuer Organization: Internet Security Research Group
fetchmail: Issuer CommonName: ISRG Root X1
fetchmail: Subject CommonName: E7
fetchmail: SSL verify callback depth 0: verify_ok == 1, err = 0, ok
fetchmail: Server certificate:
fetchmail: Issuer Organization: Let's Encrypt
fetchmail: Issuer CommonName: E7
fetchmail: Subject CommonName: mail.example.de
fetchmail: Subject Alternative Name: mail.example.de
fetchmail: mail.example.de key fingerprint: 88:38:1F:81:CB:76:C3:5C:30:EB:24:B0:A6:AF:C3:B5
fetchmail: mail.example.de fingerprints match.
fetchmail: SSL/TLS: using protocol TLSv1.3, cipher TLS_AES_256_GCM_SHA384, 256/256 secret/processed bits
fetchmail: POP3< +OK Dovecot ready.
fetchmail: POP3> CAPA
fetchmail: POP3< +OK
fetchmail: POP3< CAPA
fetchmail: POP3< TOP
fetchmail: POP3< UIDL
fetchmail: POP3< RESP-CODES
fetchmail: POP3< PIPELINING
fetchmail: POP3< AUTH-RESP-CODE
fetchmail: POP3< USER
fetchmail: POP3< SASL PLAIN
fetchmail: POP3< .
fetchmail: POP3> USER info@example.de
fetchmail: POP3< +OK
fetchmail: POP3> PASS *
fetchmail: POP3< +OK Logged in.
fetchmail: selecting or re-polling default folder
fetchmail: POP3> STAT
fetchmail: POP3< +OK 0 0
fetchmail: No mail for info@example.de at mail.example.de
fetchmail: POP3> QUIT
fetchmail: POP3< +OK Logging out.
fetchmail: 6.4.38 querying mail.example.de (protocol POP3) at Sat Dec 27 10:38:11 2025: poll completed
fetchmail: New UID list from mail.example.de:
<empty>
fetchmail: not swapping UID lists, no UIDs seen this query
fetchmail: Query status=1 (NOMAIL)
am Anfang hatte ich folgenden Fehler wenn ich versuchte an die Adresse zu schicken:
554 5.7.1 : Recipient Address rejected: Access denied
nun kommen Sie aber anscheinend zumindest auf dem Server an:
root@machine:~# ls -l /var/mail/vhosts/example.de/info/new/
total 24
-rwx------ 1 vmail vmail 488 Dec 26 10:33 1766741613.Vfe04I4446cM718686.machine
-rwx------ 1 vmail vmail 559 Dec 26 12:15 1766747700.Vfe04I4445cM527855.machine
-rwx------ 1 vmail vmail 560 Dec 26 16:09 1766761773.Vfe04I44470M571829.machine
-rw------- 1 vmail vmail 877 Dec 27 09:19 1766823545.Vfe04I44411M139654.machine
-rw------- 1 vmail vmail 3809 Dec 27 09:21 1766823669.Vfe04I444bdM487562.machine
-rw------- 1 vmail vmail 3799 Dec 27 10:37 1766828235.Vfe04I444c7M614505.machine
root@machine:~# cat /v
var/ vmlinuz vmlinuz.old
root@machine:~# cat /var/mail/vhosts/example.de/info/new/1766828235.Vfe04I444c7M614505.machine
Return-Path: <someone@icloud.com>
X-Original-To: info@example.de
Delivered-To: info@example.de
Authentication-Results: mail.example.de;
dkim=pass (2048-bit key; unprotected) header.d=icloud.com header.i=@icloud.com header.a=rsa-sha256 header.s=1a1hai header.b=k2zEch/B;
dkim-atps=neutral
Received: from outbound.pv.icloud.com (p-west1-cluster2-host8-snip4-10.eps.apple.com [57.103.64.211])
by mail.example.de (Postfix) with ESMTPS id 62727444C6
for <info@example.de>; Sat, 27 Dec 2025 10:37:15 +0100 (CET)
Received: from outbound.pv.icloud.com (unknown [127.0.0.2])
by p00-icloudmta-asmtp-us-west-1a-100-percent-1 (Postfix) with ESMTPS id C0B741800136
for <info@example.de>; Sat, 27 Dec 2025 09:37:12 +0000 (UTC)
Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; bh=bj74/rslR0bn/dJ9cdn2gpaxFeMo+U6NOpehHz71RU4=; h=From:Content-Type:Mime-Version:Subject:Message-Id:Date:To:x-icloud-hme; b=k2zEch/BHjD6uc50nQHCNv0u4Qj/RvmhBD39tVNPwIb1gcTV5cIx4VaroRtlbBz5wz+sIecwcMB5JfAjCIMrAlAYIGJrIkHswdYkQYNjKgOp9x4s+29pM5z5z2cnvLMbu/rqfaaybOpLu4j7iUiSzLIcOefqk1aJlUTiOQtMQ68XQGpmOhdWWqeXmFDiZSpNLt3W8NihbjD6W15Q0TKkajnFOEsvOh95PHLh3pr4vkisn7tfKK0v9bI9vwJf8ff5OWiRbm8MoqgEkt/h8A4MOT2VK/qHdJ+oarGr2GX23fVJmnEjGEqGE9BszpTiyzwDouZVc61OoOgJkDdzsLXHxg==
Received: from smtpclient.apple (unknown [17.56.9.36])
by p00-icloudmta-asmtp-us-west-1a-100-percent-1 (Postfix) with ESMTPSA id BF6CE18003C2
for <info@example.de>; Sat, 27 Dec 2025 09:37:11 +0000 (UTC)
From: Someone <someone@icloud.com>
Content-Type: text/plain;
charset=us-ascii
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.10\))
Subject: testmail
Message-Id: <653E1AD3-6323-44EE-AFE6-818C1B113A51@icloud.com>
Date: Sat, 27 Dec 2025 10:37:09 +0100
To: info@example.de
X-Mailer: Apple Mail (2.3696.120.41.1.10)
X-Authority-Info: v=2.4 cv=fOg0HJae c=1 sm=1 tr=0 ts=694fa8c9 cx=c_apl:c_pps
a=azHRBMxVc17uSn+fyuI/eg==:117 a=azHRBMxVc17uSn+fyuI/eg==:17
a=kj9zAlcOel0A:10 a=wP3pNCr1ah4A:10 a=x7bEGLp0ZPQA:10 a=PIqGmxjlgxoA:10
a=VkNPw1HP01LnGYTKEx00:22 a=LWprAhOym66e4T9J5UIA:9 a=CjuIK1q_8ugA:10
a=IdhazVfQLjob28e-BX84:22
X-Proofpoint-ORIG-GUID: afbghAHChnpZDr0RygMt6lrLSSMZAggW
X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI3MDA4OCBTYWx0ZWRfX60V+i61QQ2E9
ARXybWub2LhA8W55tFTTCtue1HQKX0OD1a8G+iCZAgaBZdnG8poFbvX6bdsxlyE3l6w1NliCMnW
llHB9wRv3Rblt6x91aCIOfu9OvM5tUOBbJ1kq3+FVRnQ5qtwhg/YXbuSIglJqKnjczTd3363qKi
0dKE4N8ziB4UX64deV0OpMxH+ycmm2X1AStdTZr/Zn/vELAvhFeZ5bDRyF7krQaSSK/Gq5V+QK8
yv3dMXNKM/erPdI9a7qlZoRTLHLZx0q6k+XXAH2WJYlqdv+2TQzfpDWuGO0XsgTOoeRJEffLBG+
xYDnkwOcKC/ZhY2sqD4
X-Proofpoint-GUID: afbghAHChnpZDr0RygMt6lrLSSMZAggW
X-Proofpoint-Virus-Version: vendor=baseguard
engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49
definitions=2025-12-27_03,2025-12-26_01,2025-10-01_01
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0
phishscore=0 mlxlogscore=440 suspectscore=0 mlxscore=0 adultscore=0
malwarescore=0 bulkscore=0 clxscore=1015 classifier=spam authscore=0 adjust=0
reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512270088
X-JNJ: AAAAAAABd6Ia2CLg0DEEvYf7GaXE+Vva+Z5a9PPLCH8bUFyz8eNH5t9NPsGI++Glgtt2clStYXbr5rTK3rSmrXaHUa1IsIqcVGHNQVWNmREd7FJFAs1tVIw91820zEouc/HwsyLafLlhS3cawV8IjAQneSV0uyD3gXQsipWTvNKFOEsrx4RCscFwQ7dEnmMWmrSi9aNlk9wHjO6ZUzl7MqBXuU0kyf8qeq3IUKWPpNf1l+F9/i1C6uZFZUwY0nRZjMlNCihcrm0yGzO480L2iDwu8m2IBHpCozfZSQAJQExzLuEO3sOzLtCdvoWowHxmTheKZp02gFnN5uF7SqcsWAPZaxWNuHxKIGgDZNcDwALLNhS9zeNnH2MvEhqozOVO79IHORDBzebLWwI8WR0UO9nTLve+m+ww77bPl8+yyWEx1nKo8GZ2x4ycY2p3T+VXe1C+hzlliT+o1SfIKQTyoM0lzLe596HfgA24BbDlcjZHQZlovigy+nV/i0ZJJV5SP9+CNJ7gnYzRxIYeYzb/wwz8ljg9KlHtayvP/0rvvvKJhbFutHhPh54xyehFTod0MvPyvmzo07mdVfhdHahvphyaObUMX9TTid/6j2cvCPBVraOg
testmail
root@machine:~#
