Unable to send email on Carbonio CE

Hi,

I have encountered exactly the same issue as above (crackdj), now I am not sure if it is related to my ISP blocking port 25, but normally it should not be the case so when I type this, I get 20025!

zextras@mail:~$ zmprov gcf zimbraSmtpPort
zimbraSmtpPort: 20025

Is that strange or correct?

I have already Zimbra Network Ed. on another server working fine with a different IP address.

I just discovered Carbonio yesterday and installed it, I also went into the same Errors when using the Admin access page with Firefox and Edge, the solution proposed by a user allowed me to login despite that your team could not replicate those errors, I saw that few have had it as well.

I haven't had the time yet to read the whole manual, if you can point me to the link where I can add the chat and the files services, it would be nice, I can't actually tick/untick them in the Admin panel.

Last thing, I could not login with the iOS app and got an error, I tried 2 accounts without success.

Regarding Authorization in settings of the mail account, I tried to add and iOS password thinking I needed it to use the app but there was no place to type this password in the popup window and could only click button Done, after which it says I have successfully created a password which I don't know about.

Thank you very much for your nice work.

I forgot to add the link for my screenshots:

https://ibb.co/fQM63gc

Thank you

Hi,

I have contacted my ISP support and they confirmed that port 25 is blocked, reason why no emails can be sent or received and services cannot start.

I will need to find a turn around or use another port if possible.

Thank you

@rony 

Hi, Thanks for sharing, for my case the problem is invalid reverse dns record from ISP so some destination domain was rejected email from my domain. Correcting DNS and Reverse DNS solves the problem.

@sharif I had configured all the records as mentioned, and for some domains, the emails are getting sent, but for Gmail, they are not getting sent; I received a bounce-back message. Also, for some times( like 2 or 3 times), I am able to send emails to Gmail.

@sreeharis 

Could you please share the bounce back message ?

Regards,

Sharif

@sharif Please find below,

From: sreehari@phykon.co.in
MessageID: <1964786897.3599169.1725160760833.JavaMail.zextras@phykon.co.in>
Sent on: 2024-09-01 08:49:24

Mail delivery to following recipients failed:

sreeandsree19@gmail.com - 550 5.7.1  https://support.google.com/mail/?p=UnsolicitedMessageError  41be03b00d2f7-7d4cbe0bf2asi2862528a12.642 - gsmtp

Received: from mail.phykon.co.in (localhost [127.0.0.1])
(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256)
(No client certificate requested)
by mail.phykon.co.in (Postfix) with ESMTPS id 3CFFEF1EEC6
for <sreeandsree19@gmail.com>; Sun, 1 Sep 2024 03:19:21 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
by mail.phykon.co.in (Postfix) with ESMTP id 33FC9F1EF1B
for <sreeandsree19@gmail.com>; Sun, 1 Sep 2024 03:19:21 +0000 (UTC)
DKIM-Filter: OpenDKIM Filter v2.11.0 mail.phykon.co.in 33FC9F1EF1B
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=phykon.co.in;
s=6CC7984A-2D61-11EF-9B9C-1C2D1BDAE49F; t=1725160761;
bh=rw6ACGYQHVWmLU5iRDSasJ6j2BSFZNRjFI2muhZQBgo=;
h=Date:From:To:Message-ID:MIME-Version;
b=SjuXTFlDChA1YRwEUkNI8v3t9DKV6RWJ0twfFzvUkNLD7kfSdpMKcyb/7THFdIEQT
nQmg5jDg41n9oqtSh8jEszo/y2F+NYC7plcQMsSf83RhAPQWBn0hWf9SVimbUVfLHj
2nju2iUJDrWDms/sFnIDS14REtsgyUmEDD7r4hwkNHMFVaL/FiDtdSkhhbQwHRFGOc
YknBYMeDnONASd4FOjxgHuh+GnnOQ2A6hM8UI92LKLcrijOLzmkehWIIpa8QytbmA5
UvwXbNbka7bt2qmzSGV0biSu+kNQY/ACxK0qZjkFAyxsQtuAmGDiXPDROnv5Uj8NN/
mZUFLm1whnL0A==
Received: from mail.phykon.co.in ([127.0.0.1])
by localhost (mail.phykon.co.in [127.0.0.1]) (amavis, port 10026) with ESMTP
id pWddPU9HBfid for <sreeandsree19@gmail.com>;
Sun, 1 Sep 2024 03:19:21 +0000 (UTC)
Received: from mail.phykon.co.in (localhost [127.0.0.1])
by mail.phykon.co.in (Postfix) with ESMTP id 066ECF1EEF7
for <sreeandsree19@gmail.com>; Sun, 1 Sep 2024 03:19:21 +0000 (UTC)
Date: Sun, 1 Sep 2024 03:19:20 +0000 (UTC)
From: Sreehari S <sreehari@phykon.co.in>
To: sreeandsree19 <sreeandsree19@gmail.com>
Message-ID: <1964786897.3599169.1725160760833.JavaMail.zextras@phykon.co.in>
Subject: Test
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="=_6d2ae544-ec9a-46cb-bb84-6b398c96ea60"
X-Originating-IP: [10.10.40.4]
X-Mailer: Carbonio 24.1.0_ZEXTRAS_202401 (CarbonioWebClient - Chrome 128.0.0.0 (Windows)/24.1.0_ZEXTRAS_202401 carbonio 20240104-1254 FOSS)
X-Authenticated-User: sreehari@phykon.co.in
Thread-Index: 0x/lI9VHmXHBJUzE03MH4Nkv5v8ptQ==
Thread-Topic: Test

--=_6d2ae544-ec9a-46cb-bb84-6b398c96ea60
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Test
--=_6d2ae544-ec9a-46cb-bb84-6b398c96ea60
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 12pt; color: #000000"><p>Test</p></div></body></html>
--=_6d2ae544-ec9a-46cb-bb84-6b398c96ea60--

@sharif Could you please look.

Hi @sreeharis,

The error message 550 5.7.1 with the link to Google's support page indicates that the email you are trying to send has been rejected by Google's mail servers because it was identified as potentially unsolicited or spam.

Could please make sure that SPF, DKIM, DMARC, PTR records for your domains are published properly and try again?

Posted by: @sreeharis

↑

sreeandsree19@gmail.com - 550 5.7.1  https://support.google.com/mail/?p=UnsolicitedMessageError  41be03b00d2f7-7d4cbe0bf2asi2862528a12.642 - gsmtp

Also, when you are managing an email server, I would suggest to take help of https://postmaster.google.com/ tool of Google to monitor your server/IP reputation.

Regards,

Sharif

Hi @sharif

I checked all the DNS records and they are published properly I checked Google Postmaster tools, no error in it.

@sreeharis  

seems like the problem is 

- Invalid DNS and reverse DNS lookup

- No properly DMARC is configure in DNS/domain provider

have you validate your mail domain using mxtoolbox.

@sreeharis 

Hi,

Still I believe the gmail bounce back is from gmail end. May be if possible, just share the log from /var/log/carbonio.log and the complete header of the bounce back message.

Regards,

Sharif

@sharif 

ep 3 09:18:15 mail postfix/postscreen[536458]: CONNECT from [127.0.0.1]:48332 to [127.0.0.1]:25
Sep 3 09:18:15 mail postfix/postscreen[536458]: ALLOWLISTED [127.0.0.1]:48332
Sep 3 09:18:15 mail postfix/smtpd[1889960]: connect from localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/smtpd[1889960]: lost connection after CONNECT from localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/smtpd[1889960]: disconnect from localhost[127.0.0.1] commands=0/0
Sep 3 09:18:15 mail postfix/dkimmilter/smtpd[1906507]: connect from localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/dkimmilter/smtpd[1906507]: 5C6A4F27EE9: client=localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/cleanup[1906502]: 5C6A4F27EE9: message-id=<SEZPR02MB8523FE8D9D019F3743E1A92CAD932@SEZPR02MB8523.apcprd02.prod.outlook.com>
Sep 3 09:18:15 mail postfix/qmgr[536372]: 5C6A4F27EE9: from=<sreehari@phykon.co.in>, size=2415, nrcpt=1 (queue active)
Sep 3 09:18:15 mail postfix/dkimmilter/smtpd[1906507]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Sep 3 09:18:15 mail amavis[1849334]: (1849334-07) z7Qx99VC39c5 FWD from <sreehari@phykon.co.in> -> <sreeandsree19@gmail.com>, BODY=7BIT 250 2.0.0 from MTA(smtp:[127.0.0.1]:10030): 250 2.0.0 Ok: queued as 5C6A4F27EE9
Sep 3 09:18:15 mail amavis[1849334]: (1849334-07) Passed CLEAN {RelayedOutbound}, ORIGINATING LOCAL [40.99.103.205]:28827 [40.99.103.205] <sreehari@phykon.co.in> -> <sreeandsree19@gmail.com>, Queue-ID: 12E1FF25B20, Message-ID: <SEZPR02MB8523FE8D9D019F3743E1A92CAD932@sezpr02mb8523.apcprd02.prod.outlook.com>, mail_id: z7Qx99VC39c5, Hits: -, size: 1975, queued_as: 5C6A4F27EE9, 56 ms
Sep 3 09:18:15 mail postfix/smtp[1906504]: 12E1FF25B20: to=<sreeandsree19@gmail.com>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.45, delays=0.38/0.01/0/0.05, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10030): 250 2.0.0 Ok: queued as 5C6A4F27EE9)
Sep 3 09:18:15 mail postfix/qmgr[536372]: 12E1FF25B20: removed
Sep 3 09:18:15 mail postfix/amavisd/smtpd[1906509]: connect from localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/amavisd/smtpd[1906509]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
Sep 3 09:18:15 mail postfix/amavisd/smtpd[1906509]: 64E1BF25B20: client=localhost[127.0.0.1]
Sep 3 09:18:15 mail postfix/cleanup[1906502]: 64E1BF25B20: message-id=<SEZPR02MB8523FE8D9D019F3743E1A92CAD932@SEZPR02MB8523.apcprd02.prod.outlook.com>
Sep 3 09:18:15 mail postfix/smtps/smtpd[1904096]: disconnect from unknown[40.99.103.205] ehlo=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=6
Sep 3 09:18:15 mail postfix/qmgr[536372]: 64E1BF25B20: from=<sreehari@phykon.co.in>, size=3402, nrcpt=1 (queue active)
Sep 3 09:18:15 mail postfix/amavisd/smtpd[1906509]: disconnect from localhost[127.0.0.1] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7
Sep 3 09:18:15 mail postfix/smtp[1906508]: 5C6A4F27EE9: to=<sreeandsree19@gmail.com>, relay=127.0.0.1[127.0.0.1]:10025, delay=0.07, delays=0.01/0.01/0.01/0.03, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 64E1BF25B20)
Sep 3 09:18:15 mail postfix/qmgr[536372]: 5C6A4F27EE9: removed
Sep 3 09:18:15 mail postfix/smtp[1906508]: warning: DNSSEC validation may be unavailable
Sep 3 09:18:15 mail postfix/smtp[1906508]: warning: reason: dnssec_probe 'ns:.' received a response that is not DNSSEC validated
Sep 3 09:18:17 mail postfix/smtp[1906508]: 64E1BF25B20: to=<sreeandsree19@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.200.27]:25, delay=2.2, delays=0.03/0/1.5/0.61, dsn=2.0.0, status=sent (250 Queued id=0x2000dc7f)
Sep 3 09:18:17 mail postfix/qmgr[536372]: 64E1BF25B20: removed
Sep 3 09:18:18 mail saslauthd[536231]: zmauth: authenticating against elected url 'https://mail.phykon.co.in:7073/service/admin/soap/' ...
Sep 3 09:18:18 mail saslauthd[536231]: zmpost: url='https://mail.phykon.co.in:7073/service/admin/soap/' returned buffer->data='<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"><soap:Header><context xmlns="urn:zimbra"/></soap:Header><soap:Body><soap:Fault><soap:Code><soap:Value>soap:Sender</soap:Value></soap:Code><soap:Reason><soap:Text>authentication failed for [mysqladmin@co.in]</soap:Text></soap:Reason><soap:Detail><Error xmlns="urn:zimbra"><Code>account.AUTH_FAILED</Code><Trace>qtp532677950-897522:1725355098674:fc4d927c244e7c80</Trace></Error></soap:Detail></soap:Fault></soap:Body></soap:Envelope>', hti->error=''
Sep 3 09:18:18 mail saslauthd[536231]: auth_zimbra: mysqladmin@co.in auth failed: authentication failed for [mysqladmin@co.in]
Sep 3 09:18:18 mail saslauthd[536231]: : auth failure: [user=mysqladmin@co.in] [service=smtp] [realm=co.in] [mech=zimbra] [reason=Unknown]
Sep 3 09:18:18 mail postfix/smtps/smtpd[1875134]: warning: unknown[194.169.175.65]: SASL LOGIN authentication failed: authentication failure, sasl_username=mysqladmin@co.in
Sep 3 09:18:19 mail postfix/postscreen[536458]: CONNECT from [192.168.1.254]:52986 to [192.168.1.113]:25
Sep 3 09:18:19 mail postfix/postscreen[536458]: ALLOWLISTED [192.168.1.254]:52986
Sep 3 09:18:19 mail postfix/smtpd[1889078]: connect from _gateway[192.168.1.254]
Sep 3 09:18:19 mail postfix/smtpd[1889078]: NOQUEUE: filter: RCPT from _gateway[192.168.1.254]: <>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026; from=<> to=<sreehari@phykon.co.in> proto=SMTP helo=<Sophos>
Sep 3 09:18:19 mail postfix/smtpd[1889078]: 103A7F25B20: client=_gateway[192.168.1.254]
Sep 3 09:18:19 mail postfix/cleanup[1906502]: 103A7F25B20: message-id=<20240903091819.103A7F25B20@mail.phykon.co.in>
Sep 3 09:18:19 mail postfix/qmgr[536372]: 103A7F25B20: from=<>, size=4383, nrcpt=2 (queue active)
Sep 3 09:18:19 mail postfix/smtpd[1889078]: disconnect from _gateway[192.168.1.254] helo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) ESMTP :10026 /opt/zextras/data/amavisd/tmp/amavis-20240903T072510-1850769-Q29Ia03O: <> -> <sreehari@phykon.co.in>,<sreehari@phykon.com> Received: from mail.phykon.co.in ([127.0.0.1]) by localhost (mail.phykon.co.in [127.0.0.1]) (amavis, port 10026) with ESMTP; Tue, 3 Sep 2024 09:18:19 +0000 (UTC)
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) Checking: UjKgxtH6NUDu ORIGINATING/MYNETS [192.168.1.254] <> -> <sreehari@phykon.co.in>,<sreehari@phykon.com>
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) WARN: MIME::Parser error: part did not end with expected boundary; ; error: unexpected end of parts before epilogue
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) local delivery: <> -> bad-header-quarantine, mbx=/opt/zextras/data/amavisd/quarantine/badh-UjKgxtH6NUDu
Sep 3 09:18:19 mail postfix/dkimmilter/smtpd[1906507]: connect from localhost[127.0.0.1]
Sep 3 09:18:19 mail postfix/dkimmilter/smtpd[1906507]: 19C2BF28101: client=localhost[127.0.0.1]
Sep 3 09:18:19 mail postfix/cleanup[1906502]: 19C2BF28101: message-id=<20240903091819.103A7F25B20@mail.phykon.co.in>
Sep 3 09:18:19 mail opendkim[536117]: 19C2BF28101: can't parse From: header value ' '
Sep 3 09:18:19 mail postfix/dkimmilter/smtpd[1906507]: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=2 data=1 quit=1 commands=6
Sep 3 09:18:19 mail postfix/qmgr[536372]: 19C2BF28101: from=<>, size=4898, nrcpt=2 (queue active)
Sep 3 09:18:19 mail postfix/amavisd/smtpd[1906509]: connect from localhost[127.0.0.1]
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) UjKgxtH6NUDu FWD from <> -> <sreehari@phykon.co.in>,<sreehari@phykon.com>, BODY=7BIT 250 2.0.0 from MTA(smtp:[127.0.0.1]:10030): 250 2.0.0 Ok: queued as 19C2BF28101
Sep 3 09:18:19 mail postfix/amavisd/smtpd[1906509]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256
Sep 3 09:18:19 mail postfix/amavisd/smtpd[1906509]: 1C42DF28106: client=localhost[127.0.0.1]
Sep 3 09:18:19 mail postfix/cleanup[1906502]: 1C42DF28106: message-id=<20240903091819.103A7F25B20@mail.phykon.co.in>
Sep 3 09:18:19 mail postfix/amavisd/smtpd[1906509]: disconnect from localhost[127.0.0.1] ehlo=2 starttls=1 mail=1 rcpt=2 data=1 quit=1 commands=8
Sep 3 09:18:19 mail postfix/smtp[1906508]: 19C2BF28101: to=<sreehari@phykon.co.in>, relay=127.0.0.1[127.0.0.1]:10025, delay=0.02, delays=0.01/0/0/0, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 1C42DF28106)
Sep 3 09:18:19 mail postfix/smtp[1906508]: 19C2BF28101: to=<sreehari@phykon.com>, relay=127.0.0.1[127.0.0.1]:10025, delay=0.02, delays=0.01/0/0/0, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 1C42DF28106)
Sep 3 09:18:19 mail postfix/qmgr[536372]: 1C42DF28106: from=<>, size=5289, nrcpt=2 (queue active)
Sep 3 09:18:19 mail amavis[1850769]: (1850769-07) Passed BAD-HEADER-1 {RelayedInternal,RelayedOutbound,Quarantined}, ORIGINATING/MYNETS LOCAL [192.168.1.254]:52986 <> -> <sreehari@phykon.co.in>,<sreehari@phykon.com>, quarantine: badh-UjKgxtH6NUDu, Queue-ID: 103A7F25B20, Message-ID: <20240903091819.103A7F25B20@mail.phykon.co.in>, mail_id: UjKgxtH6NUDu, Hits: -, size: 4339, queued_as: 19C2BF28101, 46 ms
Sep 3 09:18:19 mail postfix/smtp[1906504]: 103A7F25B20: to=<sreehari@phykon.co.in>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.06, delays=0.01/0/0/0.04, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10030): 250 2.0.0 Ok: queued as 19C2BF28101)
Sep 3 09:18:19 mail postfix/smtp[1906504]: 103A7F25B20: to=<sreehari@phykon.com>, orig_to=<sreehari@phykon.co.in>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.06, delays=0.01/0/0/0.04, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10030): 250 2.0.0 Ok: queued as 19C2BF28101)
Sep 3 09:18:19 mail postfix/qmgr[536372]: 19C2BF28101: removed
Sep 3 09:18:19 mail postfix/qmgr[536372]: 103A7F25B20: removed
Sep 3 09:18:19 mail postfix/lmtp[1906515]: 1C42DF28106: to=<sreehari@phykon.co.in>, relay=mail.phykon.co.in[192.168.1.113]:7025, delay=0.07, delays=0/0.01/0/0.05, dsn=2.1.5, status=sent (250 2.1.5 Delivery OK)
Sep 3 09:18:21 mail postfix/smtp[1906508]: 1C42DF28106: to=<sreehari@phykon.com>, relay=smtp.google.com[74.125.24.26]:25, delay=2.1, delays=0/0/1.6/0.51, dsn=2.0.0, status=sent (250 Queued id=0x2000dc81)
Sep 3 09:18:21 mail postfix/qmgr[536372]: 1C42DF28106: removed

Hi,

The following parts of the log clearly suggests that the email has been successfully delivered to the gmail SMTP (smtp.google.com)

Posted by: @sreeharis

↑

Sep 3 09:18:17 mail postfix/smtp[1906508]: 64E1BF25B20: to=<sreeandsree19@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.200.27]:25, delay=2.2, delays=0.03/0/1.5/0.61, dsn=2.0.0, status=sent (250 Queued id=0x2000dc7f)
Sep 3 09:18:17 mail postfix/qmgr[536372]: 64E1BF25B20: removed

Posted by: @sreeharis

↑

Sep 3 09:18:21 mail postfix/smtp[1906508]: 1C42DF28106: to=<sreehari@phykon.com>, relay=smtp.google.com[74.125.24.26]:25, delay=2.1, delays=0/0/1.6/0.51, dsn=2.0.0, status=sent (250 Queued id=0x2000dc81)

Therefore, it is nothing related to CE. You have to look into other issues (DNS, IP reputation, domain reputation etc.) If you have any external gateway, you can try sending emails to gmail through that gateway and check the status.

Regards,

Sharif