Dear all, I'm running dovecot # 2.3.2.1 - Pigeonhole version 0.5.2 () - OS: Linux 4.18.0-12-generic x86_64 Ubuntu 18.10 with Submission. It works great except with apple mail (Iphone). I get an error with the MTA (postfix): ""postfix/submission/smtpd[32552]: warning: non-SMTP command from mail.example.org[xx.xx.xx.xx]: Content-Transfer-Encoding: 7bit"" with other mail-client(s) (Outlook (Desktop and Iphone app)) i have no problem and it proxy-sends the e-mail beautiful out to the recipient. I think it is some kind of bug or maybe it just isn't supported (yet), cause as you said it is still "pretty basic". Best Regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20181217/156a5a9b/attachment.html>
On 2018-12-18 07:33, Ruud Voorjans wrote:> Dear all, > > I'm running dovecot # 2.3.2.1 - Pigeonhole version 0.5.2 () - OS: > Linux 4.18.0-12-generic x86_64 Ubuntu 18.10 with Submission. > It works great except with apple mail (Iphone). > > I get an error with the MTA (postfix): > ""postfix/submission/smtpd[32552]: warning: non-SMTP command from > mail.example.org [1][xx.xx.xx.xx]: Content-Transfer-Encoding: 7bit"" > > with other mail-client(s) (Outlook (Desktop and Iphone app)) i have no > problem and it proxy-sends the e-mail beautiful out to the recipient.Hardly anything to do with Dovecot. When it comes to email clients Apple Mail has been and is still one of the worst flops (no offence intended, just my opinion based on personal experience). If you can reliably reproduce it, try and log the raw SMTP conversation between Postfix and the client by enabling per IP debugging in Postfix: postconf -e "debug_peer_level = 20" postconf -e "debug_peer_list = xx.xx.xx.xx" postfix reload where xx.xx.xx.xx is the unlucky client IP address. Possibly some crappy SMTP PIPELINING implementation at the Apple end, who knows. -- Adi Pircalabu
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<div>
<br>
</div>
<blockquote type="cite">
<div>
On 18 December 2018 at 02:30 Adi Pircalabu via dovecot <
<a
href="mailto:dovecot@dovecot.org">dovecot@dovecot.org</a>>
wrote:
</div>
<div>
<br>
</div>
<div>
<br>
</div>
<div>
On 2018-12-18 07:33, Ruud Voorjans wrote:
</div>
<blockquote type="cite">
<div>
Dear all,
</div>
<div>
<br>
</div>
<div>
I'm running dovecot # 2.3.2.1 - Pigeonhole version 0.5.2 () - OS:
</div>
<div>
Linux 4.18.0-12-generic x86_64 Ubuntu 18.10 with Submission.
</div>
<div>
It works great except with apple mail (Iphone).
</div>
<div>
<br>
</div>
<div>
I get an error with the MTA (postfix):
</div>
<div>
""postfix/submission/smtpd[32552]: warning: non-SMTP command from
</div>
<div>
mail.example.org [1][xx.xx.xx.xx]: Content-Transfer-Encoding:
7bit""
</div>
<div>
<br>
</div>
<div>
with other mail-client(s) (Outlook (Desktop and Iphone app)) i have no
</div>
<div>
problem and it proxy-sends the e-mail beautiful out to the recipient.
</div>
</blockquote>
<div>
Hardly anything to do with Dovecot. When it comes to email clients Apple
</div>
<div>
Mail has been and is still one of the worst flops (no offence intended,
</div>
<div>
just my opinion based on personal experience). If you can reliably
</div>
<div>
reproduce it, try and log the raw SMTP conversation between Postfix and
</div>
<div>
the client by enabling per IP debugging in Postfix:
</div>
<div>
postconf -e "debug_peer_level = 20"
</div>
<div>
postconf -e "debug_peer_list = xx.xx.xx.xx"
</div>
<div>
postfix reload
</div>
<div>
where xx.xx.xx.xx is the unlucky client IP address.
</div>
<div>
<br>
</div>
<div>
Possibly some crappy SMTP PIPELINING implementation at the Apple end,
</div>
<div>
who knows.
</div>
<div>
<br>
</div>
<div>
--
</div>
<div>
Adi Pircalabu
</div>
</blockquote>
<div>
<br>
</div>
<div>
It's not unconceivable that there are bugs in submission either. Can you
provide doveconf -n and submission rawlogs? See
https://wiki.dovecot.org/Submission for settings.
</div>
<div>
<br>
</div>
<div class="io-ox-signature">
---
<br>Aki Tuomi
</div>
</body>
</html>