{"id":92,"date":"2021-03-22T00:22:33","date_gmt":"2021-03-22T00:22:33","guid":{"rendered":"https:\/\/www.jibsheet.net\/linux\/?p=92"},"modified":"2021-03-22T00:22:33","modified_gmt":"2021-03-22T00:22:33","slug":"some-sendmail-tips-with-aws-and-debian","status":"publish","type":"post","link":"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/03\/22\/some-sendmail-tips-with-aws-and-debian\/","title":{"rendered":"Some sendmail tips with AWS and Debian"},"content":{"rendered":"
    \n
  1. Configuration\n
      \n
    1. strings use left tick – hex 60 on left, hex 27 at the end.\u00a0 PAY attention<\/li>\n
    2. error – DNS Host unknown (Name server: ‘some-smtp.server.com’)\n
        \n
      1. This error is caused by using python\/bash like single ticks on both sides<\/li>\n
      2. \n
        `SMART_HOST', `<\/strong>email-smtp.eu1.amazonaws.com'<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n
      3. AWS uses port 587 – don’t even bother trying to use port 22.\n
          \n
        1. it will not respond.<\/li>\n
        2. this will appear in log as\u00a0 “Deferred: Connection reset”<\/li>\n
        3. change port and see if the connection works.<\/li>\n<\/ol>\n<\/li>\n
        4. use the make all command after making changes to sendmail.mc\n
            \n
          1. Saves a backup<\/li>\n
          2. \u00a0prevents some dangerous typos – especially if following other HOWTOs<\/li>\n<\/ol>\n<\/li>\n
          3. Restart sendmail.\n
              \n
            1. \n
              service sendmail restart<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n
            2. Configure saslauthd\u00a0 or authentication.\n
                \n
              1. \n
                yum -y install cyrus-sasl cyrus-sasl-md5 cyrus-sasl-plain<\/pre>\n<\/li>\n
              2. https:\/\/www.cyrusimap.org\/sasl\/<\/a><\/li>\n<\/ol>\n<\/li>\n
              3. dovecot for pop3d to get email off the server\n
                  \n
                1. \n
                  yum install dovecot-imapd dovecot-pop3d<\/pre>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n
                   <\/p>\n","protected":false},"excerpt":{"rendered":"
                  Configuration strings use left tick – hex 60 on left, hex 27 at the end.\u00a0 PAY attention error – DNS Host unknown (Name server: ‘some-smtp.server.com’) This error is caused by using python\/bash like single ticks on both sides `SMART_HOST’, `email-smtp.eu1.amazonaws.com’ AWS uses port 587 – don’t even bother trying to use port 22. it will not respond. this will appear […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8,5],"tags":[],"yoast_head":"\nSome sendmail tips with AWS and Debian - Jon Allen's Linux Stuff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jibsheet.net\/linux\/index.php\/2021\/03\/22\/some-sendmail-tips-with-aws-and-debian\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Some sendmail tips with AWS and Debian - 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