{"id":316,"date":"2009-10-16T00:51:06","date_gmt":"2009-10-16T05:51:06","guid":{"rendered":"http:\/\/24.183.55.167:8101\/wordpress\/?p=316"},"modified":"2012-08-14T20:52:46","modified_gmt":"2012-08-15T01:52:46","slug":"cant-send-mail-from-fedora-linux-solved","status":"publish","type":"post","link":"https:\/\/icesquare.com\/wordpress\/cant-send-mail-from-fedora-linux-solved\/","title":{"rendered":"Can&#8217;t send mail from Fedora Linux &#8230; Solved!"},"content":{"rendered":"<p>I was having problem today to send out an email from my Fedora 11 Linux box. By default, the mail server software, Sendmail, comes with the standard installation and no configuration is required. I didn&#8217;t understand why the Sendmail didn&#8217;t work.<\/p>\n<p>After a very detail investigation, I finally found out why. Here are the steps I went through to solve the problem.<\/p>\n<p>1. Make sure the Sendmail is running.<\/p>\n<blockquote><p><code>netstats -na | grep LISTEN<\/code><\/p><\/blockquote>\n<p>You should see something is running on port 25.<\/p>\n<p>2. Make sure the stupid SELinux Firewall is disabled.<\/p>\n<p>3. Make sure the Linux Firewall allows port 25.<\/p>\n<p>4. Try to connect to the port 25.<\/p>\n<blockquote><p><code>telnet localhost 25<\/code><\/p><\/blockquote>\n<p>If you have trouble to connect to the port, that means something is not work.<\/p>\n<p>5. Make sure you are not blocking port 25 at the system level:<br \/>\n<strong>In \/etc\/hosts.allow<\/strong><\/p>\n<blockquote><p><code>sendmail: localhost: allow<\/code><\/p><\/blockquote>\n<p>That should work!<\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I was having problem today to send out an email from my Fedora 11 Linux box. By default, the mail server software, Sendmail, comes with the standard installation and no <a class=\"more-link\" href=\"https:\/\/icesquare.com\/wordpress\/cant-send-mail-from-fedora-linux-solved\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[144,6],"tags":[49,48,47],"class_list":["post-316","post","type-post","status-publish","format-standard","hentry","category-sever-problem","category-technology","tag-fedora","tag-linux","tag-sendmail"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p1sqzr-56","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1643,"url":"https:\/\/icesquare.com\/wordpress\/set-up-pure-ftpd-server-with-virtual-user-on-fedora-linux\/","url_meta":{"origin":316,"position":0},"title":"How to Set up a Pure-FTPd Server with Virtual User on Fedora","author":"Derrick","date":"October 11, 2011","format":false,"excerpt":"This tutorial is for Fedora Linux. If you are looking for setting up Pure-FTPd on FreeBSD, click here. My client likes to send me a huge data file (More than 10GB after compressed). Since I don't care about the security during the transfer, I decide to go with the old\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"\/wordpress\/wp-content\/uploads\/2011\/10\/pure-ftpd.png","width":350,"height":200},"classes":[]},{"id":505,"url":"https:\/\/icesquare.com\/wordpress\/solvedfedora-repository-error-errno-14-pycurl-error-6\/","url_meta":{"origin":316,"position":1},"title":"[Solved]Fedora Linux Repository Error ([Errno 14] PYCURL ERROR 6)","author":"Derrick","date":"January 4, 2010","format":false,"excerpt":"I was having trouble to update my Fedora Linux system by running sudo yum update. sudo yum update Loaded plugins: presto, refresh-packagekit Error: Cannot retrieve repository metadata (repomd.xml) for repository: fedora. Please verify its path and try again sometimes I see different sets of error: http:\/\/download.fedoraproject.org\/pu...ta\/repomd.xml: [Errno 14] PYCURL ERROR\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"Fedoraproject.org has downed.","src":"\/wordpress\/wp-content\/uploads\/2010\/01\/Fedora-Down-300x217.png","width":350,"height":200},"classes":[]},{"id":3412,"url":"https:\/\/icesquare.com\/wordpress\/how-to-remote-desktop-to-linux-from-windows-xrdp\/","url_meta":{"origin":316,"position":2},"title":"How to Remote Desktop To Linux From Windows Using XRDP","author":"Derrick","date":"January 24, 2014","format":false,"excerpt":"If you are looking for ways to remote desktop to Linux from Windows, and you are sick of VNC, you are in the right place. I have been looking for a solution to do something very simple. I want to remotely access the desktop of my Linux servers from Windows\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1469,"url":"https:\/\/icesquare.com\/wordpress\/upgrade-fedora-linux-using-command-line\/","url_meta":{"origin":316,"position":3},"title":"Upgrade Fedora Linux Using Command Line","author":"Derrick","date":"June 28, 2011","format":false,"excerpt":"Recently, I decide to upgrade all of the Fedora Linux servers. As of today, the latest version is Fedora 15. As for my servers, they are in between Fedora 11 and 14. In the other words, I will need to upgrade some machine from 11 all the way to 15.\u2026","rel":"","context":"In &quot;Server Problems&quot;","block_context":{"text":"Server Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/sever-problem\/"},"img":{"alt_text":"","src":"\/wordpress\/wp-content\/uploads\/2011\/08\/fedora-logo-150x150.png","width":350,"height":200},"classes":[]},{"id":5012,"url":"https:\/\/icesquare.com\/wordpress\/google-one-vpn-how-to-by-pass-vpn-in-windows\/","url_meta":{"origin":316,"position":4},"title":"Google One VPN: How to by pass VPN in Windows","author":"Derrick","date":"February 14, 2024","format":false,"excerpt":"Recently I started using the Google One VPN service. I love it because of its simplicity. However, I quickly ran into problem because some services require my real IP addresses. Since the Google One VPN is designed for average Joe, it doesn't have any advanced features. It is either all\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/"},"img":{"alt_text":"","src":"\/wordpress\/wp-content\/uploads\/2024\/02\/Putty-01.fw_.png","width":350,"height":200},"classes":[]},{"id":454,"url":"https:\/\/icesquare.com\/wordpress\/fedora-linux-12-is-out-today\/","url_meta":{"origin":316,"position":5},"title":"Fedora Linux 12 is out today","author":"Derrick","date":"November 17, 2009","format":false,"excerpt":"Fedora Linux 12 is out today. Here are the links to download Fedora 12: Download Fedora 12 64-Bit Download Fedora 12 32-Bit Download Fedora 12 PowerPC All versions Suggestions: I found that the downloading speed varies depends on which mirror you get. I suggest to test the download speed first,\u2026","rel":"","context":"In &quot;Computer Problems&quot;","block_context":{"text":"Computer Problems","link":"https:\/\/icesquare.com\/wordpress\/category\/technology\/computer-problems-computer-help-pc-support\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/comments?post=316"}],"version-history":[{"count":11,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/316\/revisions"}],"predecessor-version":[{"id":2931,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/posts\/316\/revisions\/2931"}],"wp:attachment":[{"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/media?parent=316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/categories?post=316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icesquare.com\/wordpress\/wp-json\/wp\/v2\/tags?post=316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}