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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://infosec.exchange/users/adamhotep/statuses/113873405329019639">Adam Katz (adamhotep@infosec.exchange)'s status on Thursday, 23-Jan-2025 04:04:33 JST</a><a href="https://infosec.exchange/@adamhotep" title="adamhotep@infosec.exchange"><img src="https://gnusocial.jp/avatar/45353-48-20231203004725.webp" width="48" height="48" alt="Adam Katz" style="position: absolute; left: 0; top: 0;">Adam Katz</a></section><article><p>At the moment, whitehouse.gov doesn't have an MX record and its A records don't listen on port 25, so you can't send <a href="https://infosec.exchange/tags/email" rel="tag">#email</a> to anything@whitehouse.gov</p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4426733#notice-8660511">In conversation</a><time datetime="2025-01-23T04:04:33+09:00" title="Thursday, 23-Jan-2025 04:04:33 JST">about 9 days ago</time> <span>from <span><a href="https://infosec.exchange/@adamhotep/113873405329019639" rel="external" title="Sent from infosec.exchange via ActivityPub">infosec.exchange</a></span></span><a href="https://infosec.exchange/@adamhotep/113873405329019639">permalink</a><h4>Attachments</h4><ol><li><article><header><div>Domain not in remote thumbnail source whitelist: www.whitehouse.gov</div><h5><a href="https://www.whitehouse.gov/">The White House</a></h5><div></div></header><div>President Biden and Vice President Harris promised to move quickly to deliver results for working families. That’s what they’ve done.</div><footer></footer></article></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/3987884">Command line with basic prompt and pretty colors. The "host" command is run to query the mail exchange for whitehouse.gov, which has no record. The same command is run to get the A and AAAA records, which are then scanned with nmap checking port 25. The IPv4 address has port 25 closed while the IPv6 address has it filtered.The exact commands follow. If your speech-to-text can't handle this, interrupt it knowing you've already got the meat above.$ host -t mx whitehouse.gov
whitehouse.gov has no MX record
$ host whitehouse.gov      
whitehouse.gov has address 192.0.66.51
whitehouse.gov has IPv6 address 2a04:fa87:fffd::c000:42b7
$ nmap -p25 192.0.66.51                         
Starting Nmap 7.95 ( https://nmap.org ) at 2025-01-22 13:13 EST
Nmap scan report for 192.0.66.51
Host is up (0.070s latency).PORT   STATE    SERVICE
25/tcp filtered smtpNmap done: 1 IP address (1 host up) scanned in 0.30 seconds
$ nmap -6 -p25 2a04:fa87:fffd::c000:42b7
Starting Nmap 7.95 ( https://nmap.org ) at 2025-01-22 13:14 EST
Nmap scan report for 2a04:fa87:fffd::c000:42b7
Host is up (0.019s latency).PORT   STATE    SERVICE
25/tcp filtered smtpNmap done: 1 IP address (1 host up) scanned in 0.25 seconds</a></label><br><a href="https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/873/453/317/029/607/original/0fe10efe680076a4.png" rel="external">https://media.infosec.exchange/infosec.exchange/media_attachments/files/113/873/453/317/029/607/original/0fe10efe680076a4.png</a></li></ol></footer></blockquote>

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Adam Katz (adamhotep@infosec.exchange)'s status on Thursday, 23-Jan-2025 04:04:33 JST Adam Katz
At the moment, whitehouse.gov doesn't have an MX record and its A records don't listen on port 25, so you can't send #email to anything@whitehouse.gov
In conversationabout 9 days ago from infosec.exchangepermalink
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1. Domain not in remote thumbnail source whitelist: www.whitehouse.gov
  The White House
  President Biden and Vice President Harris promised to move quickly to deliver results for working families. That’s what they’ve done.
2. Command line with basic prompt and pretty colors. The "host" command is run to query the mail exchange for whitehouse.gov, which has no record. The same command is run to get the A and AAAA records, which are then scanned with nmap checking port 25. The IPv4 address has port 25 closed while the IPv6 address has it filtered. The exact commands follow. If your speech-to-text can't handle this, interrupt it knowing you've already got the meat above. $ host -t mx whitehouse.gov whitehouse.gov has no MX record $ host whitehouse.gov whitehouse.gov has address 192.0.66.51 whitehouse.gov has IPv6 address 2a04:fa87:fffd::c000:42b7 $ nmap -p25 192.0.66.51 Starting Nmap 7.95 ( https://nmap.org ) at 2025-01-22 13:13 EST Nmap scan report for 192.0.66.51 Host is up (0.070s latency). PORT STATE SERVICE 25/tcp filtered smtp Nmap done: 1 IP address (1 host up) scanned in 0.30 seconds $ nmap -6 -p25 2a04:fa87:fffd::c000:42b7 Starting Nmap 7.95 ( https://nmap.org ) at 2025-01-22 13:14 EST Nmap scan report for 2a04:fa87:fffd::c000:42b7 Host is up (0.019s latency). PORT STATE SERVICE 25/tcp filtered smtp Nmap done: 1 IP address (1 host up) scanned in 0.25 seconds
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