20 Sep
2019
20 Sep
'19
3:17 p.m.
On 09/20/2019 03:43 PM, adb wrote:
the backup has the right port, the backup is from an
android device which automatically configures Delta Chat, if the port were wrong the
initial configuration would not success, so the backup is perfect, the problem is DC-iOS
using other port instead of port 25 as specified in the backup,
there are no firewalls and IMAP works, the issue seems to be this thing of the wrong
port,
about not using a backup, the issue is that Delta Chats for other platforms than Android,
just don't work with our Nauta server, I mean they don't configure properly not
even setting the configuration manually, I don't known iOS but the Desktop client
doesn't work for me, it tries to use SSL despite I set it to off,
If that's the case, you're hitting a bug: see if there's something
already reported about it, otherwise you can open a ticket.
Nauta server doesn't support SSL, just STARTTLS or
PLAIN on port 25 for SMTP
It does not support even STARTTLS: looking at the DNS entries for that
domain you can see that
marco@linux:~> host nauta.cu
nauta.cu mail is handled by 0 mail2.etecsa.net.
nauta.cu mail is handled by 0 mail3.etecsa.net.
the smtp server is either one of the two, so you should end up
configuring delta to use as outgoing server "mail2.etecsa.net" on port
25 and double check that there is no Secure/SSL/TLS option selected
because it does not support secure connections at all:
marco@linux:~> telnet mail2.etecsa.net 25
Trying 181.225.231.40...
Connected to mail2.etecsa.net.
Escape character is '^]'.
220 mail.etecsa.net ESMTP Server
EHLO client.example.org
250-emx04.etecsa.net
250-PIPELINING
250-SIZE 28311552
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
The IMAP server is somewhere out there, I just can't find its
name/address, you could check out some working client and see what is
currently using.
imap/smtp.nauta.cu aren't active anymore it seems, even if the web is
full of reference to those hostnames (or maybe your local ISP DNS is
serving something for those names only to subscribers?).
--
Marco