Update howto/2-allow.insecure.pop3.imap.connection.md to mention how to allow insecure smtp service.

This commit is contained in:
Zhang Huangbin 2014-10-06 23:49:44 +08:00
parent e35d6c1cc8
commit 7e562dc4fa
4 changed files with 31 additions and 13 deletions

View File

@ -8,7 +8,7 @@ We're working on migrating [old wiki documents](http://www.iredmail.org/wiki) to
* [Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/1-amavisd.no.x-spam.headers.md)
* [Disable spam virus scanning for outgoing mails](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/1-disable.spam.virus.scanning.for.outgoing.mails.md)
* [Quarantining](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/1-quarantining.md)
* [Allow insecure POP3/IMAP connection without STARTTLS](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/2-allow.insecure.pop3.imap.connection.md)
* [Allow insecure POP3/IMAP/SMTP connections without STARTTLS](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/2-allow.insecure.pop3.imap.smtp.connections.md)
* [Allow user to send email without authentication](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/allow.user.to.send.email.without.authentication.md)
* [Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/configure.thunderbird.md)
* [Ignore Trash folder in mailbox quota](https://bitbucket.org/zhb/docs.iredmail.org/src/default/howto/ignore.trash.folder.in.quota.md)

View File

@ -1,14 +1,16 @@
# Allow insecure POP3/IMAP connection without STARTTLS
# Allow insecure POP3/IMAP/SMTP connections without STARTTLS
With default iRedMail setting, all clients are forced to use IMAPS and POPS (via
STARTTLS) for better security by default. If your mail clients try to access
mailbox via protocol POP3 (port 110) or IMAP (port 143) without TLS support,
you will get error message like below:
With default iRedMail setting, all clients are forced to use POP3/IMAP/SMTP
services over STARTTLS for for better security by default. If your mail clients
try to access mailbox via protocol POP3 (port 110) or IMAP (port 143) without
TLS support, you will get error message like below:
```
Plaintext authentication disallowed on non-secure (SSL/TLS) connections
```
## Allow insecure POP3/IMAP connections
If you want to enable POP3/IMAPS without STARTTLS for some reason (again, not
recommended), please update below two parameters in Dovecot config file
`dovecot.conf` and restart Dovecot service:
@ -29,3 +31,12 @@ Default and recommended setting configured by iRedMail is:
disable_plaintext_auth=yes
ssl=required
```
## Allow insecure SMTP connection
Please comment out below line in Postfix config file `/etc/postfix/main.cf`
and reload or restart Postfix service:
```
smtpd_tls_auth_only=yes
```

View File

@ -1,7 +1,7 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Allow insecure POP3/IMAP connection without STARTTLS</title>
<title>Allow insecure POP3/IMAP/SMTP connections without STARTTLS</title>
<link href="./css/markdown.css" rel="stylesheet"></head>
</head>
<body>
@ -10,14 +10,15 @@
<a href="http://www.iredmail.org" target="_blank">iRedMail web site</a>
// <a href="./index.html">Document Index</a>
</div><h1 id="allow-insecure-pop3imap-connection-without-starttls">Allow insecure POP3/IMAP connection without STARTTLS</h1>
<p>With default iRedMail setting, all clients are forced to use IMAPS and POPS (via
STARTTLS) for better security by default. If your mail clients try to access
mailbox via protocol POP3 (port 110) or IMAP (port 143) without TLS support,
you will get error message like below:</p>
</div><h1 id="allow-insecure-pop3imapsmtp-connections-without-starttls">Allow insecure POP3/IMAP/SMTP connections without STARTTLS</h1>
<p>With default iRedMail setting, all clients are forced to use POP3/IMAP/SMTP
services over STARTTLS for for better security by default. If your mail clients
try to access mailbox via protocol POP3 (port 110) or IMAP (port 143) without
TLS support, you will get error message like below:</p>
<pre><code>Plaintext authentication disallowed on non-secure (SSL/TLS) connections
</code></pre>
<h2 id="allow-insecure-pop3imap-connections">Allow insecure POP3/IMAP connections</h2>
<p>If you want to enable POP3/IMAPS without STARTTLS for some reason (again, not
recommended), please update below two parameters in Dovecot config file
<code>dovecot.conf</code> and restart Dovecot service:</p>
@ -33,4 +34,10 @@ ssl=yes
<p>Default and recommended setting configured by iRedMail is:</p>
<pre><code>disable_plaintext_auth=yes
ssl=required
</code></pre>
<h2 id="allow-insecure-smtp-connection">Allow insecure SMTP connection</h2>
<p>Please comment out below line in Postfix config file <code>/etc/postfix/main.cf</code>
and reload or restart Postfix service:</p>
<pre><code>smtpd_tls_auth_only=yes
</code></pre><br /><p>If you found something wrong in this document, please do <a href="http://www.iredmail.org/contact.html">contact us</a> to fix it.</p></body></html>

View File

@ -21,7 +21,7 @@
<li><a href="amavisd.no.x-spam.headers.html">Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.</a></li>
<li><a href="disable.spam.virus.scanning.for.outgoing.mails.html">Disable spam virus scanning for outgoing mails</a></li>
<li><a href="quarantining.html">Quarantining</a></li>
<li><a href="allow.insecure.pop3.imap.connection.html">Allow insecure POP3/IMAP connection without STARTTLS</a></li>
<li><a href="allow.insecure.pop3.imap.smtp.connections.html">Allow insecure POP3/IMAP/SMTP connections without STARTTLS</a></li>
<li><a href="allow.user.to.send.email.without.authentication.html">Allow user to send email without authentication</a></li>
<li><a href="configure.thunderbird.html">Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)</a></li>
<li><a href="ignore.trash.folder.in.quota.html">Ignore Trash folder in mailbox quota</a></li>