Habe jetzt noch Folgendes meiner loaklen main.cf (macOS) hinzugefügt:

smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwd
smtp_sasl_mechanism_filter = AUTH LOGIN

smtp_use_tls = yes
#smtp_tls_security_level = may
smtp_tls_security_level = encrypt
smtpd_tls_cert_file = none
tls_random_source = dev:/dev/urandom



Aber ich sehe nur das auf meinem Mailserver:

May 18 09:17:18 mail postfix/submission/smtpd[615768]: connect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
May 18 09:17:18 mail postfix/submission/smtpd[615783]: connect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
May 18 09:17:18 mail postfix/submission/smtpd[615782]: connect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p]
May 18 09:17:18 mail postfix/submission/smtpd[615784]: connect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p]
May 18 09:17:18 mail postfix/submission/smtpd[615785]: connect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
May 18 09:17:19 mail postfix/submission/smtpd[615768]: disconnect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
 ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:19 mail postfix/submission/smtpd[615783]: disconnect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
 ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:19 mail postfix/submission/smtpd[615785]: disconnect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
 ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:19 mail postfix/submission/smtpd[615782]: disconnect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p] ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:19 mail postfix/submission/smtpd[615784]: disconnect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p] ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:19 mail postfix/submission/smtpd[615768]: connect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p]
May 18 09:17:19 mail postfix/submission/smtpd[615783]: connect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p]
May 18 09:17:19 mail postfix/submission/smtpd[615785]: connect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
May 18 09:17:19 mail postfix/submission/smtpd[615782]: connect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p]
May 18 09:17:19 mail postfix/submission/smtpd[615784]: connect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
May 18 09:17:20 mail postfix/submission/smtpd[615768]: disconnect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p] ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:20 mail postfix/submission/smtpd[615785]: disconnect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
 ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:20 mail postfix/submission/smtpd[615783]: disconnect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p] ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:20 mail postfix/submission/smtpd[615784]: disconnect from 
p2000xxxxxxxxxxxxxxxxxxxxxx.dip0.t-ipconnect.de[xxxx:xx:xxxx:xxxx:xxxx:xxxx:xxxx]
 ehlo=2 starttls=1 quit=1 commands=4
May 18 09:17:20 mail postfix/submission/smtpd[615782]: disconnect from 
p1234567.dip0.t-ipconnect.de[me.ne.i.p] ehlo=2 starttls=1 quit=1 commands=4



Komisch, diese doppelten connects (ipv6 und ipv4).

Fand auch noch diesen Artikel. Könnte also auch gmail mit meiner gmail-Adresse  
als Relay benutzen:

https://www.justinsilver.com/technology/osx/send-emails-mac-os-x-postfix-gmail-relay/
 
<https://www.justinsilver.com/technology/osx/send-emails-mac-os-x-postfix-gmail-relay/>

Schönes Wochenende,

Christoph

> Am 17.05.2024 um 21:26 schrieb Christoph Kukulies via postfix-users 
> <[email protected]>:
> 
> Das einzige, was mit tls zu tun hat in der /etc/postfix/main.cf auf der macOS 
> Seite ist:
> 
> tls_random_source = dev:/dev/urandom
> smtpd_tls_ciphers = medium
> 
> 
> 
> 
> 
> 
>> Am 17.05.2024 um 20:00 schrieb Markus Winkler via postfix-users 
>> <[email protected] <mailto:[email protected]>>:
>> 
>> Hi Christoph,
>> 
>> On 17.05.24 17:44, Christoph Kukulies via postfix-users wrote:
>>>     5.7.0 Must issue a STARTTLS command first (in reply to MAIL FROM 
>>> command)
>> 
>> guck mal, ob Du in der macOS-main.cf etwas wie das hier findest:
>> 
>> smtp_tls_security_level = may
>> 
>> VG
>> Markus
> 

Attachment: smime.p7s
Description: S/MIME cryptographic signature

Antwort per Email an