{"version":"1.0","provider_name":"GLOCKSOFT KB","provider_url":"https:\/\/glocksoft.com\/help","author_name":"glock-help","author_url":"https:\/\/glocksoft.com\/help\/author\/glock-help\/","title":"I get a lot of errors like \"552 Syntax HELO error\" &#8902; GLOCKSOFT KB","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"5VzCBqHvhB\"><a href=\"https:\/\/glocksoft.com\/help\/knowledge-base\/syntax-helo-error\/\">I get a lot of errors like &#8220;552 Syntax HELO error&#8221;<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/glocksoft.com\/help\/knowledge-base\/syntax-helo-error\/embed\/#?secret=5VzCBqHvhB\" width=\"600\" height=\"338\" title=\"&#8220;I get a lot of errors like &#8220;552 Syntax HELO error&#8221;&#8221; &#8212; GLOCKSOFT KB\" data-secret=\"5VzCBqHvhB\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/glocksoft.com\/help\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"I get a lot of error messages like &#8220;501 Syntactically invalid HELO argument(s)&#8221; or &#8220;552 Syntax HELO error&#8221;. How can they be solved? To avoid these errors, you must enter either your IP address or domain name into Domain name for HELO field in the Advanced Email Verifier settings under [&hellip;]"}