{"id":5785,"date":"2023-09-01T14:34:24","date_gmt":"2023-09-01T12:34:24","guid":{"rendered":"https:\/\/www.inboxroad.com\/?page_id=5785"},"modified":"2023-09-01T17:05:54","modified_gmt":"2023-09-01T15:05:54","slug":"supported-smtp-headers","status":"publish","type":"page","link":"https:\/\/www.inboxroad.com\/de\/documentation\/api-reference\/supported-smtp-headers\/","title":{"rendered":"Supported SMTP headers"},"content":{"rendered":"<p>You can use the following SMTP headers with Inboxroad:<\/p>\n<p>SMTP Headers:<\/p>\n<ul>\n<li>Date: Indicates the date and time when the message was sent.<\/li>\n<li>From: Specifies the email address of the sender.<\/li>\n<li>To: Specifies the email address of the recipient.<\/li>\n<li>Subject: Contains a brief description or subject of the email.<\/li>\n<li>Message-ID: A unique identifier for the message.<\/li>\n<li>In-Reply-To: References the message to which the current message is a reply.<\/li>\n<li>References: Contains a list of message-ids for previous related messages.<\/li>\n<li>Return-Path: Specifies the email address to which bounce notifications should be sent.<\/li>\n<li>MIME Headers (Common Email Headers):<\/li>\n<li>Content-Type: Describes the type of content within the email (e.g., text\/plain for plain text, text\/html for HTML, multipart\/mixed for mixed content).<\/li>\n<li>Content-Disposition: Defines how the email&#8217;s content should be displayed or processed (e.g., inline or as an attachment).<\/li>\n<li>Content-Transfer-Encoding: Specifies how the message body is encoded (e.g., base64, quoted-printable).<\/li>\n<li>Content-ID: A unique identifier for inline content within the email.<\/li>\n<li>Content-Language: Specifies the language of the email content.<\/li>\n<li>Content-Description: Provides a brief description of the email&#8217;s content.<\/li>\n<li>MIME-Version: Indicates the MIME version used in the email (e.g., MIME-Version: 1.0).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Additional Headers:<\/p>\n<ul>\n<li>Reply-To: Specifies the email address to which replies should be sent, which may differ from the sender&#8217;s address.<\/li>\n<li>CC (Carbon Copy): Specifies email addresses of additional recipients who should receive a copy of the email.<\/li>\n<li>BCC (Blind Carbon Copy): Specifies email addresses of additional recipients who receive a copy of the email but are not visible to other recipients.<\/li>\n<li>X-Headers: Custom headers that can be added for specific purposes. These are not standardized but are sometimes used for various purposes by email clients and servers.<\/li>\n<li>Custom X headers can be added. You might need this to match the feedback to the specific emails \/ campaigns etc.<\/li>\n<li>We have the following custom X headers that can be used to your liking. They will only show up when they contain information.\n<ul>\n<li>header_X-Job<\/li>\n<li>header_X-List<\/li>\n<li>header_X-CAMPAIGN<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>You can use the following SMTP headers with Inboxroad: SMTP Headers: Date: Indicates the&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":4955,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"page-documentation.php","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-5785","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/pages\/5785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/comments?post=5785"}],"version-history":[{"count":0,"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/pages\/5785\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/pages\/4955"}],"wp:attachment":[{"href":"https:\/\/www.inboxroad.com\/de\/wp-json\/wp\/v2\/media?parent=5785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}