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> <channel><title>Frequently Asked Questions About Linux / UNIX &#187; postfix</title> <atom:link href="http://www.cyberciti.biz/faq/tag/postfix/feed/" rel="self" type="application/rss+xml" /><link>http://www.cyberciti.biz/faq</link> <description>Every answer asks a more beautiful question.</description> <lastBuildDate>Fri, 03 Feb 2012 22:38:32 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.3.1</generator> <item><title>Postfix SASL ERROR: Password not accepted from server: 535 5.7.0 Error: authentication failed: authentication failure</title><link>http://www.cyberciti.biz/faq/rhel-linux-postfix-sasl-authentication-error/</link> <comments>http://www.cyberciti.biz/faq/rhel-linux-postfix-sasl-authentication-error/#comments</comments> <pubDate>Tue, 27 May 2008 16:41:53 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[account password]]></category> <category><![CDATA[authentication failure]]></category> <category><![CDATA[cyrus sasl]]></category> <category><![CDATA[data security]]></category> <category><![CDATA[email server]]></category> <category><![CDATA[enterprise linux]]></category> <category><![CDATA[file error]]></category> <category><![CDATA[internet protocols]]></category> <category><![CDATA[mechanisms]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[red hat enterprise]]></category> <category><![CDATA[sasl library]]></category> <category><![CDATA[saslpasswd2 command]]></category> <category><![CDATA[security layer]]></category> <category><![CDATA[server administrator]]></category> <category><![CDATA[server programs]]></category> <category><![CDATA[shell]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/?p=1082</guid> <description><![CDATA[Q. I've recently changed email user account password using passwd command, for one my postfix email server which requires SMTP authentication before sending an email. Now following error is logged into my /var/log/maillog file: ERROR: Password not accepted from server: 535 5.7.0 Error: authentication failed: authentication failure How do I solve this problem under Red [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/rhel-linux-postfix-sasl-authentication-error/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Configure Postfix for DNS Blackhole Lists such as dsbl.org / spamhaus.org database</title><link>http://www.cyberciti.biz/faq/howto-configure-postfix-dnsrbls-under-linux-unix/</link> <comments>http://www.cyberciti.biz/faq/howto-configure-postfix-dnsrbls-under-linux-unix/#comments</comments> <pubDate>Tue, 16 Oct 2007 18:24:23 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[blackhole]]></category> <category><![CDATA[cf]]></category> <category><![CDATA[configuration directive]]></category> <category><![CDATA[incoming email]]></category> <category><![CDATA[incoming mail]]></category> <category><![CDATA[ip addresses]]></category> <category><![CDATA[mail server]]></category> <category><![CDATA[mta]]></category> <category><![CDATA[open relay database]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[realtime database]]></category> <category><![CDATA[spam sources]]></category> <category><![CDATA[spam support services]]></category> <category><![CDATA[spamhaus]]></category> <category><![CDATA[stop spam with dns blacklist]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/howto-configure-postfix-dnsrbls-under-linux-unix/</guid> <description><![CDATA[Q. How do I configure my Postfix mail server to scan incoming mail for spam using DNS Blackhole List such as: a) The Spamhaus b) Open Relay Database etc A. To discard spam or garbage email you can use 3rd party services such as Spamhaus. These are realtime database of IP addresses of verified spam [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/howto-configure-postfix-dnsrbls-under-linux-unix/feed/</wfw:commentRss> <slash:comments>4</slash:comments> </item> <item><title>Postfix block PDF or ZIP files attachments</title><link>http://www.cyberciti.biz/faq/howto-postfix-block-pdf-zip-file/</link> <comments>http://www.cyberciti.biz/faq/howto-postfix-block-pdf-zip-file/#comments</comments> <pubDate>Fri, 10 Aug 2007 11:11:18 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[FreeBSD]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[block files]]></category> <category><![CDATA[block pdf file]]></category> <category><![CDATA[block zip file]]></category> <category><![CDATA[email attachments]]></category> <category><![CDATA[mail server]]></category> <category><![CDATA[mime header]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[reload postfix]]></category> <category><![CDATA[restart postfix]]></category> <category><![CDATA[zip files]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/howto-postfix-block-pdf-zip-file/</guid> <description><![CDATA[Q. How do I block all PDF or ZIP files attachments under Postfix Mail Server? A. You can easily block email attachments using mime header check. Open postfix config file Login as the root, enter: # vi /etc/postfix/main.cf Block zip or pdf files Use mime_header_checks postfix config directive, enter: mime_header_checks = regexp:/etc/ostfix/block_attachments Save and close [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/howto-postfix-block-pdf-zip-file/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Howto: Linux Dovecot Secure IMAPS / POP3S SSL Server configuration</title><link>http://www.cyberciti.biz/faq/unix-dovecot-ssl-tls-server-configuration/</link> <comments>http://www.cyberciti.biz/faq/unix-dovecot-ssl-tls-server-configuration/#comments</comments> <pubDate>Mon, 16 Jul 2007 18:20:42 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[HP-UX Unix]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Networking]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Security]]></category> <category><![CDATA[Solaris-Unix]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[dovecot]]></category> <category><![CDATA[imap server]]></category> <category><![CDATA[imaps]]></category> <category><![CDATA[mail server]]></category> <category><![CDATA[pop3_server]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[ssl certificates]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/unix-dovecot-ssl-tls-server-configuration/</guid> <description><![CDATA[Q. How do I configure Dovecot IMAPS and POP3s server using SSL certificate? Can I use SSL certificates generated for Postfix mail server? A. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/unix-dovecot-ssl-tls-server-configuration/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Postfix setup catch-all email accounts using /etc/postfix/virtual</title><link>http://www.cyberciti.biz/faq/howto-setup-postfix-catch-all-email-accounts/</link> <comments>http://www.cyberciti.biz/faq/howto-setup-postfix-catch-all-email-accounts/#comments</comments> <pubDate>Fri, 06 Jul 2007 20:19:43 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[RedHat and Friends]]></category> <category><![CDATA[Suse]]></category> <category><![CDATA[configuration]]></category> <category><![CDATA[email accounts]]></category> <category><![CDATA[error message]]></category> <category><![CDATA[howto]]></category> <category><![CDATA[mail box]]></category> <category><![CDATA[mta]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[UNIX]]></category> <category><![CDATA[virtuao email]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/howto-setup-postfix-catch-all-email-accounts/</guid> <description><![CDATA[Q. How do I setup cacth-all email accounts under Postfix MTA? For example if an email send to me@domain.com, info@you.com and sales@you.com, should be sent to the same email address. This is useful if anyone of user mistypes an email address when they send it to me, or just guesses at a valid email address, [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/howto-setup-postfix-catch-all-email-accounts/feed/</wfw:commentRss> <slash:comments>10</slash:comments> </item> <item><title>Postfix blacklist or reject an email address</title><link>http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/</link> <comments>http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/#comments</comments> <pubDate>Wed, 04 Jul 2007 18:44:20 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[access file]]></category> <category><![CDATA[blacklist]]></category> <category><![CDATA[centos linux]]></category> <category><![CDATA[email]]></category> <category><![CDATA[linux server]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[sender address]]></category> <category><![CDATA[smtp server]]></category> <category><![CDATA[spamassassin]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/</guid> <description><![CDATA[Q. I’ve Postfix based CentOS Linux server. I need to blacklist email ID: user@abadboy.com . How do I blacklist email address with postfix? I also have spamassassin software installed. A. By default, the Postfix SMTP server accepts any sender address. However you can block / blacklist sender email address easily with Postfix. It has SMTP [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/feed/</wfw:commentRss> <slash:comments>15</slash:comments> </item> <item><title>Postfix / smtpd : sql_select option missing auxpropfunc error no mechanism available error and solution</title><link>http://www.cyberciti.biz/faq/postfix-sql_select-option-missing-auxpropfunc-error/</link> <comments>http://www.cyberciti.biz/faq/postfix-sql_select-option-missing-auxpropfunc-error/#comments</comments> <pubDate>Mon, 11 Jun 2007 20:27:50 +0000</pubDate> <dc:creator>Vivek Gite</dc:creator> <category><![CDATA[CentOS]]></category> <category><![CDATA[Debian / Ubuntu]]></category> <category><![CDATA[EMail Servers]]></category> <category><![CDATA[Linux]]></category> <category><![CDATA[Troubleshooting]]></category> <category><![CDATA[Ubuntu Linux]]></category> <category><![CDATA[apt-get command]]></category> <category><![CDATA[cyrus sasl]]></category> <category><![CDATA[enterprise linux]]></category> <category><![CDATA[log files]]></category> <category><![CDATA[mail server]]></category> <category><![CDATA[postfix]]></category> <category><![CDATA[redhat]]></category> <category><![CDATA[rpm command]]></category> <category><![CDATA[sql package]]></category> <guid
isPermaLink="false">http://www.cyberciti.biz/faq/postfix-sql_select-option-missing-auxpropfunc-error/</guid> <description><![CDATA[Q. I’m running Redhat Enterprise Linux 4.5 server along with Postfix and Cyrus mail server. However I’m getting following error in my log files: Jun 10 18:00:04 server postfix/smtpd[7280]: sql_select option missing Jun 10 18:00:04 server postfix/smtpd[7280]: auxpropfunc error no mechanism available How do I fix this error? I’m not using mysql for postfix. A. [...]]]></description> <wfw:commentRss>http://www.cyberciti.biz/faq/postfix-sql_select-option-missing-auxpropfunc-error/feed/</wfw:commentRss> <slash:comments>4</slash:comments> </item> </channel> </rss>
