Message is not RFC 2822 compliant

[Hagen Bauer]

Hi to all,

I am using mstmp to send administrative mails from my server. To my suprise I 
saw that my mails are not accepted from my mail server. I can not recall any 
changes that could have led to this
 nor a timeframe since when. I used this commandline for a long time.

I am using OpenSMTPD 7.3.0-portable.

I dont get it that a leading space is a difference.

Tis is a mail that is acceppted

```
echo ' Hello this is sending email using msmtp' | msmtp hagen.ba...@caserio.de 
-vv

<-- 250-falcon.sesameh.de Hello sesameh.de [xxx.xxx.xxx.xxx], pleased to meet 
you
<-- 250-8BITMIME
<-- 250-ENHANCEDSTATUSCODES
<-- 250-SIZE 36700160
<-- 250-DSN
<-- 250 HELP
--> MAIL FROM:<ser...@sesameh.de>
<-- 250 2.0.0 Ok
--> RCPT TO:<hagen.ba...@caserio.de>
<-- 250 2.1.5 Destination address valid: Recipient ok
--> DATA
<-- 354 Enter mail, end with "." on a line by itself
--> From: ser...@sesameh.de
--> Date: Tue, 10 Dec 2024 06:38:18 +0100
--> Message-ID: <fcf6d09d3fdb00bd2ea04203c966e...@sesameh.de>
-->  Hello this is sending email using msmtp
--> .
<-- 250 2.0.0 5c37e7a9 Message accepted for delivery
--> QUIT
<-- 221 2.0.0 Bye

```
and this mail is not accepted

```




and this mail is not accepted

```

echo 'Hello this is sending email using msmtp' | msmtp hagen.ba...@caserio.de 
-vv

  1 <-- 250-falcon.sesameh.de Hello sesameh.de [xxx.xxx.xxx.xxx], pleased to 
meet you
  2 <-- 250-8BITMIME
  3 <-- 250-ENHANCEDSTATUSCODES
  4 <-- 250-SIZE 36700160
  5 <-- 250-DSN
  6 <-- 250 HELP
  7 --> MAIL FROM:<ser...@sesameh.de>
  8 <-- 250 2.0.0 Ok
  9 --> RCPT TO:<hagen.ba...@caserio.de>
 10 <-- 250 2.1.5 Destination address valid: Recipient ok
 11 --> DATA
 12 <-- 354 Enter mail, end with "." on a line by itself
 13 --> From: ser...@sesameh.de
 14 --> Date: Tue, 10 Dec 2024 06:30:40 +0100
 15 --> Message-ID: <511c4459db751cffa69d0b0744fd6...@sesameh.de>
 16 --> Hello this is sending email using msmtp
 17 --> .
 18 <-- 550 5.7.1 Delivery not authorized, message refused: Message is not RFC 
2822 compliant
 19 msmtp: the server did not accept the mail
 20 msmtp: server message: 550 5.7.1 Delivery not authorized, message refused: 
Message is not RFC 2822 compliant

```

Regards

Hagen