Merge branch 'main' of https://github.com/fm/smtp-codes

Author: newbold

docs/amazonses/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
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 <h1>Amazon Simple Email Service</h1>
 <p>Amazon Simple Email Service (also known as "Amazon SES") is an email platform used for inbound and outbound email sending as a part of Amazon Web Services (AWS). It is also used as a MTA backend for Amazon WorkMail, their email hosting product. Typically the recipient themselves will need to open a ticket with AWS support for in-depth troubleshooting if the issue can't be resolved using manual controls.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://docs.aws.amazon.com/ses/latest/DeveloperGuide/receiving-email.html">https://docs.aws.amazon.com/ses/latest/DeveloperGuide/receiving-email.html</a></li>
+<li><a href="https://aws.amazon.com/workmail/">https://aws.amazon.com/workmail/</a></li>
+<ul>
 <h2>Codes</h2>
 <p></p>
 <p>There are no known response codes for this provider.</p>

docs/att/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>AT&T</h1>
 <p>AT&T offers free email accounts for past customers at sbcglobal.net and bellsouth.net, and new and non-customers can register an att.net or currently.com free email account. AT&T provides a detailed Postmaster page with contact options for investigating false-positive spam verdicts.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://www.att.com/support/article/email-support/KM1401980/">https://www.att.com/support/article/email-support/KM1401980/</a></li>
+<li><a href="https://www.att.com/support/article/email-support/KM1010455/">https://www.att.com/support/article/email-support/KM1010455/</a></li>
+<ul>
 <h2>Domains</h2>
 <p>att.net &#183; sbcglobal.net &#183; swbell.net &#183; bellsouth.net &#183; pacbell.net &#183; prodigy.com</p>
 <h2>Codes</h2>

docs/barracuda/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>Barracuda</h1>
 <p>Barracuda is a spam filter, block list, and firewall for businesses. Mail is routed through mailservers owned by Barracuda before it's passed along to the recipient domain's mailservers for final delivery. The recipient is able to manage a lot of delivery settings such as allow lists, but sender reputation issues that affect all Barracuda customers globally may require contacting Barracuda support directly to resolve.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://campus.barracuda.com/product/emailsecuritygateway/doc/39815000/smtp-error-codes/">https://campus.barracuda.com/product/emailsecuritygateway/doc/39815000/smtp-error-codes/</a></li>
+<ul>
 <h2>Codes</h2>
 <p><a href="#421">421</a> &#183; <a href="#422">422</a> &#183; <a href="#450">450</a> &#183; <a href="#451">451</a> &#183; <a href="#550">550</a> &#183; <a href="#554">554</a></p>
 <dl>

docs/cisco/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 

docs/comcast/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>Comcast</h1>
 <p>Comcast (also known as "Xfinity") is an American internet service provider that also provides email addresses to its customers. Former customers can still have access to their comcast.net address if they've logged in in the past 90 days, but that also means many of these addresses become inactive over time.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="http://postmaster.comcast.net/">http://postmaster.comcast.net/</a></li>
+<ul>
 <h2>Domains</h2>
 <p>comcast.net</p>
 <h2>Codes</h2>

docs/emailsecuritycloud/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>Email Security.cloud</h1>
 <p>"Email Security.cloud" is a product working in combination with "Symantec Messaging Gateway" as part of a range of services offered by Broadcom. It features spam filtering, firewall protection, and block lists. Mail is routed through mailservers owned by them (messagelabs.com) before it's passed along to the recipient domain's mailservers for final delivery. The recipient is able to manage a lot of delivery settings such a allow lists, so it helps to ask the recipient to run the described debugging tests in the user guide to identify and resolve delivery issues, as there is no way to contact the vendor directly.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://knowledge.broadcom.com/external/article/165144/smtp-bounce-back-error-codes-for-email-s.html">https://knowledge.broadcom.com/external/article/165144/smtp-bounce-back-error-codes-for-email-s.html</a></li>
+<li><a href="https://ipremoval.sms.symantec.com/">https://ipremoval.sms.symantec.com/</a></li>
+<ul>
 <h2>Codes</h2>
 <p><a href="#421">421</a> &#183; <a href="#450">450</a> &#183; <a href="#550">550</a> &#183; <a href="#553">553</a></p>
 <dl>

docs/exchangeonline/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>Exchange Online Protection</h1>
 <p>Exchange Online Protection (EOP) is the spam filter for Microsoft 365, the business productivity suite from Microsoft. It provides businesses with spam filtering, block lists, and firewall protection. If a message is going to spam or getting blocked, there are typically instructions for the email admin to fix the specific error in Exchange documentation.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/non-delivery-reports-in-exchange-online">https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/non-delivery-reports-in-exchange-online</a></li>
+<li><a href="https://sender.office.com/">https://sender.office.com/</a></li>
+<ul>
 <h2>Codes</h2>
 <p><a href="#421">421</a> &#183; <a href="#451">451</a> &#183; <a href="#550">550</a> &#183; <a href="#554">554</a></p>
 <dl>

docs/fireeye/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 

docs/free/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>Free</h1>
 <p>Free is an internet service provider headquartered in France. It provides free email accounts to its customers, notably those of Free and Alice. Their postmaster page is filled with detailed information about error codes and IP lookup options, including instructions to report a false-positive spam verdict.</p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://postmaster.free.fr/index_en.html">https://postmaster.free.fr/index_en.html</a></li>
+<ul>
 <h2>Codes</h2>
 <p><a href="#550">550</a> &#183; <a href="#552">552</a> &#183; <a href="#554">554</a></p>
 <dl>

docs/gmx/index.html

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 <meta name="fediverse:creator" content="@faisal@social.lol">
 <meta name="color-scheme" content="light dark">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<link rel="stylesheet" href="/assets/style.css?v=1751928528">
+<link rel="stylesheet" href="/assets/style.css?v=1751929010">
 <script defer src="https://um.smtp.codes/script.js" data-website-id="242ddbfa-05fb-4370-b8ff-e9fe1958909e"></script>
 </head>
 
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 <h1>GMX</h1>
 <p>GMX is an email provider including Mail.com recipients, headquartered in Germany. European receivers tend to have high expectations for GDPR legal complaince, and in some cases email deliverability is aided when the sender is included in high profile "whitelists" and certification programs. You can use the GMX postmaster site to investigate most issues, and their contact form to submit things for in-depth investigation. You can also reach out to mailsecurity@gmxnet.de directly in urgent cases. </p>
+<h2>Links</h2>
+<ul>
+<li><a href="https://postmaster.gmx.com">https://postmaster.gmx.com</a></li>
+<li><a href="https://postmaster.gmx.net/en/contact">https://postmaster.gmx.net/en/contact</a></li>
+<ul>
 <h2>Codes</h2>
 <p><a href="#501">501</a> &#183; <a href="#550">550</a> &#183; <a href="#552">552</a></p>
 <dl>