reply ticket via web using phpMail functions - email can not read

liujia27583

Sir, I installed osticket 1.17.3 on debian 11 with php8.1, nginx, and using local exim to sendout email. I tried to create ticket via sending a email to support@mydomain, then I got a New Ticket Alert email, as this:

Date: Sun, 16 Apr 2023 14:17:45 +0000
Message-ID: <BYDcR6V-gwuQX-AAAAAAIAAAACAAAATXEmTeBm-support@mydomain>
In-Reply-To: tencent_7CC908AE4210F8311E862DE05D428EC42809@qq.com
References: tencent_7CC908AE4210F8311E862DE05D428EC42809@qq.com
Auto-Submitted: =?UTF-8?Q?auto-generated?=
From: =?utf-8?Q?Support?= <support@mydomain>
MIME-Version: 1.0
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: base64
Message-Id: <E1po3CL-004D7D-Jx@iZj6ca6aiplsaeh7u4c1g7Z>
From: support@mydomain

LS0gcmVwbHkgYWJvdmUgdGhpcyBsaW5lIC0tCgoKSGkgQWRtaW4sIE5ldyB0aWNrZXQgIzgw
Mjk4MSBjcmVhdGVkIAogCiBGcm9tOiAg5Lic5bGxICAgRGVwYXJ0bWVudDogIFN1cHBvcnQg
ICAgIAog6IO95ZCm5ZGK6K+J5LiA5LiL77yfCiBUbyB2aWV3IG9yIHJlc3BvbmQgdG8gdGhl
IHRpY2tldCwgcGxlYXNlIGxvZ2luIHRvIHRoZSBzdXBwb3J0IHRpY2tldCBzeXN0ZW0KWW91
ciBmcmllbmRseSBDdXN0b21lciBTdXBwb3J0IFN5c3RlbQpSZWYtTWlkOiBCWURjUjZWLWd3
dVFYLUFBQUFBQUlBQUFBQ0FBQUFUWEVtVGVCbS1jc0BnZC5hbnF1bi5vcmcK

After search forum, Kevin adviced to use smtp instead of phpmail, so I enabled outgoing smtp using hostname 172.0.0.1 and port 25, it works. For example,

Date: Tue, 18 Apr 2023 04:04:25 +0000
Message-ID: <BYDcR6V-pQeap-AAAAAAAAAAAAAAAAPw10nV5Z-noreply@mydomain>
From: =?utf-8?Q?noreply?= <noreply@mydomain>
Subject: =?UTF-8?Q?osTicket=20test=20email?=
X-Mailer: =?UTF-8?Q?osTicket=20Mailer?=
To: dongshan3@gotdomain
MIME-Version: 1.0
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: base64

aGksIHRlc3Qgb25seS4gdGhhbmtzLgpSZWYtTWlkOiBCWURjUjZWLXBRZWFwLUFBQUFBQUFB
QUFBQUFBQUFQdzEwblY1Wi1ub3JlcGx5QGdkLmFucXVuLm9yZwo=

Does it meant that php mail() is not working, but send out email using laminas-mail is okay?

But I tried to do a example test, email body is read-able.

<?phpmail("someone@example.com", "This is the subject", "This is the body");?>

To: dongshan3@gotdomain
Subject: This is the subject
Message-Id: <E1poaxp-004K1e-8X@iZj6ca6aiplsaeh7u4c1g7Z>
From: www-data <www-data@mydomain>
Date: Tue, 18 Apr 2023 10:21:01 +0800

This is the body

Is it possible using "Content-Transfer-Encoding: quoted-printable" or other instead of "Content-Transfer-Encoding: base64" when disalbe rich text and attachment?

KevinTheJedi

liujia27583

Even with PHPMail we use Laminas-Mail. They should both be basically the same (SMTP and PHPMail) but there may be slight differences.

What's the differences between mail sent with PHPMail vs SMTP? The examples you posted cannot be the actual email content as I see the first example has duplicated From header, missing the MIME Format message, etc.

Cheers.

liujia27583

KevinTheJedi Oh, yes, you found that first example has duplicated From header, I do not know why, I just copy them via "show original" link.

And I should show two images, they are different.

image #1 - New Ticket Alert - which send via PHPMail, can not read email body, because content show as base64, not human lanuages.

image #2 - osTicket test email - which shend via SMTP (127.0.0.1:25), email is human read-able.

Maybe email send via PHPMail, there were some CRLF as this topic said, broken email header. Ref: https://github.com/php/php-src/issues/8086

KevinTheJedi

liujia27583

Duplicated/malformed headers can cause unreadable mail. Both emails should be base64 encoded so it's not the encoding.

Cheers.

liujia27583

KevinTheJedi yes, you are right. Then why send email via PHPMail will duplicated/mailformed headers?

KevinTheJedi

liujia27583 It shouldn’t be.

liujia27583

KevinTheJedi I tried to do as other people, using tcpdump to get 25 port traffic, tcpdump -npv -l -i port 25

image #5 - send email via SMTP - email body read-able

image #6 - send email via PHPMail - email body is not human language - duplicated From headers

liujia27583

KevinTheJedi I tried to enable mail.log via php.ini https://www.php.net/manual/en/mail.configuration.php, got php: mail() on [/var/www/osticket/include/laminas-mail/src/Transport/Sendmail.php:297]: To: dongshan3@example.com -- Headers: Date: Tue, 18 Apr 2023 23:33:20 +0000 Message-ID: <BYDcR6V-zlv2b-AAAAAAAAAAAAAAAAP4j9BNFP-alerts@gd.example.com> Return-Path: <alerts@gd.example.com> X-Mailer: =?UTF-8?Q?osTicket=20Mailer?= From: =?utf-8?Q?osTicket=20Alerts?= <alerts@gd.example.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 -- Subject: =?UTF-8?Q?osTicket=20test=20email=20-=20from=20phpmail?=

Then searched, got this - https://github.com/laminas/laminas-mail/issues/162 . I do not know which laminas-mail version osticket include, but tired to edit osticket/include/laminas-mail/src/Transport/Sendmail.php file, using if (PHP_VERSION_ID < 80000 && ! $this->isWindowsOs()) { instead of if (! $this->isWindowsOs()) { as https://github.com/laminas/laminas-mail/blob/2.23.x/src/Transport/Sendmail.php . PHPMail is working now.

Maybe exim think it is just one line in the email header, so exim will auto added Message-id and From header. so we have duplicated/mailformed headers before. Refer: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-message_processing.html

KevinTheJedi

liujia27583

I'm finally revisiting this, are you still having issues? I'm using v1.17.3, PHP 8.1, and Apache. I just ran a test using Sendmail and my tcpdump shows only one From header, the email delivers successfully, and the email is fully readable in Outlook.

Cheers.