{"id":104,"date":"2004-07-23T00:00:00","date_gmt":"2004-07-23T00:00:00","guid":{"rendered":"http:\/\/www.3cats.us\/blog\/?p=70"},"modified":"2004-07-23T00:00:00","modified_gmt":"2004-07-23T00:00:00","slug":"notes-70","status":"publish","type":"post","link":"https:\/\/www.3cats.us\/blog\/2004\/07\/notes-70\/","title":{"rendered":"notes-70"},"content":{"rendered":"<p>Fri Jul 23 09:03:46 PDT 2004<\/p>\n<p>Ran into some issues with aol.com and others blocking email from dynamic IP addresses on my Verizon business DSL account. This is a very bad thing, but fortunately, there&#8217;s a reasonable workaround. The solution is to relay the mail through a static-ip machine, and verizon provides one: outgoing.verizon.net. So for a linux sendmail configuration, add the line:<\/p>\n<p>define(SMART_HOST,outgoing.verizon.net)<\/p>\n<p>to your \/etc\/mail\/sendmail.mc (assuming your layout is something like a redhat or fedora box) and then, this is the critical part, you need to authenticate to outgoing.verizon.net as described by &quot;Benway&quot; in this thread:<\/p>\n<p><a  href=\"http:\/\/www.webservertalk.com\/archive58-2004-6-260816.html\">http:\/\/www.webservertalk.com\/archive58-2004-6-260816.html<\/a> &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; My memory is a bit hazy on this but, try adding the following line to \/etc\/mail\/access:<\/p>\n<p>AuthInfo:smtp.server.com &quot;U:username&quot; &quot;I:username&quot; &quot;P:password&quot; &quot;M:PLAIN&quot;<\/p>\n<p>Changing the server name, username and password to that of your account. Then run make all in \/etc\/mail. This will tell sendmail to always send this info by default.<\/p>\n<p>You can test the above manually by uuencoding the details with:<\/p>\n<p>[<a  href=\"mailto:root&#64;host1\">root&#64;host1<\/a> root]# echo -en &quot;usernamex00usernamex00password&quot; | uuencode -m \/dev\/stdout begin-base64 644 \/dev\/stdout dXNlcm5hbWUAdXNlcm5hbWUAcGFzc3dvcmQ= ====<\/p>\n<p>Then once you&#8217;ve telnet&#8217;ed onto port 25 of the mailserver and issued a helo do:<\/p>\n<p>AUTH PLAIN dXNlcm5hbWUAdXNlcm5hbWUAcGFzc3dvcmQ= &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>If you are on a redhat\/fedora machine you can restart sendmail as follows and it automagically updates the config files<\/p>\n<p>\/sbin\/service sendmail restart<\/p>\n<p>This appears to have solved the problem for me as I&#8217;m not getting mail from aol.com and other addresses bounced back to me. So Benway, whoever you are, thank you very much for the helpful information!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>    <![CDATA[]]><br \/>\n     <a href=\"https:\/\/www.3cats.us\/blog\/2004\/07\/notes-70\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-104","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/posts\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/comments?post=104"}],"version-history":[{"count":0,"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/posts\/104\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/media?parent=104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/categories?post=104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.3cats.us\/blog\/wp-json\/wp\/v2\/tags?post=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}