Can't send email notifications in nextcloud

ℹ️ Support ✉️ Mail client integration
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1

Hi All,

I’m new here and I have tried installing nextlcoud 17.0.1 version. I’m trying to send email notifications. I have tried several ways and still getting errors. My email server has a commercial SSL certificate.

Nextcloud server runs behind a nginx proxy server and Letsencrypt is installed via Certbot.

This is the error I’m getting when try to check email settings. The below error comes when I tried STARTTLS with the 587 port.


> A problem occurred while sending the email. Please revise your settings. (Error: Unable to connect with TLS encryption Log data: ++ Starting Swift_SmtpTransport << 220 abc.mailhost.com ESMTP Postfix >> EHLO nextcloud.qwe.host.com << 250-abc.mailhost.com  250-PIPELINING 250-SIZE 44040192 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250 CHUNKING >> STARTTLS << 220 2.0.0 Ready to start TLS !! Unable to connect with TLS encryption (code: 0))

The below error comes when I tried SSL/TLS with the 465 port.


A problem occurred while sending the email. Please revise your settings. (Error: Connection could not be established with host *.*.*.*[ #0] Log data: ++ Starting Swift_SmtpTransport !! connection could not be established with host *.*.*.*[ #0] (code: 0))

Telnetting to my email server from nextcloud is connected for both 587 and 465 ports.
My email server 465/587 ports are all open.

‘overwriteprotocol’ => ‘https’,
‘mail_smtpdebug’ => true,
‘mail_smtpmode’ => ‘smtp’,
‘mail_smtphost’ => ‘abc.com’,
‘mail_sendmailmode’ => ‘smtp’,
‘mail_domain’ => ‘abc.com’,
‘mail_from_address’ => ‘nextcloud’,
‘maintenance’ => false,
‘mail_smtpauthtype’ => ‘LOGIN’,
‘mail_smtpport’ => ‘587’,
‘mail_smtpauth’ => 1,
‘mail_smtpname’ => ‘nextcloud’,
‘mail_smtppassword’ => ‘**************’,
‘mail_smtpsecure’ => ‘tls’,

Do I have to point my email commercial cert files to nextcloud config file? That’s the only this I couldn’t try because could not find the parameter for that.

I have tried many ways but did not succeed at all. Can anyone here be able to help me?

2

Hi,

please try to add following array to your config as it is described here Email — Nextcloud latest Administration Manual latest documentation

"mail_smtpstreamoptions" => array(
    'ssl' => array(
        'allow_self_signed' => true,
        'verify_peer' => false,
        'verify_peer_name' => false
    )
),
3

Hi. Thaks for your reply. But I tried it and still the same.

4

seen this?
→ [Bug]: NEXTCLOUD 26 Email Setup no Test successfully · Issue #37329 · nextcloud/server · GitHub

One guy reported the following

I have the same problem with the patch in 26.0.1. But these parameters in config.php save my life and mail is now ok. The main difference is ‘mail_smtpauth’ => 0 instead of ‘mail_smtpauth’ => ‘’.

'mail_smtpmode' => 'smtp',
'mail_smtpauthtype' => '',
'mail_smtphost' => 'XXX.XXX.XXX.XXX',
'mail_smtpport' => '25',
'mail_smtptimeout' => 30,
'mail_sendmailmode' => 'smtp',
'mail_from_address' => 'no-reply',
'mail_domain' => 'mondomaine.fr',
'mail_send_plaintext_only' => false,
'mail_smtpauth' => 0,
'mail_smtpname' => '',
'mail_smtppassword' => '',
'mail_smtpstreamoptions' => array(
'ssl' => array(
'allow_self_signed' => true,
'verify_peer' => false,
'verify_peer_name' => false
)
),

that differs from your config …