Відео

Merci.

Watched this in 2023 as im in my new job in a NOC troubleshooting email servers

Thank you for simplifying this topic which I dreaded before now.

This is so clear. thank you

Ohhh.. What a satisfying video... I liked it and didn't get bored. Very nice explanation and a soothing background music. The way of presentation is excellent. I'm gonna watch your another videos just to see the presentation.

Great Video Brent. Please Post more Videos

DNS stands for domain name system and not dynamic name system. Overall the graphics give good overview

It was really nice and the concept was explained in full detail. I have seen so many videos but this one is the best and easy to understand. thankyou SIR.

What about mail transfer agent?

someone has a mailing server that is automated and the original website says on google that it no longer exists and is 'for sale'. I sent a reply to the automated address and the message bounced back undelivered. Is that why it bounced because there is no receiver? How does it work? If there's no website, can they stop sending automated emails asking me to add me to their insta? I responded with i don't have an insta account... you can add me on kofi and then it bounces back as they are trying to connect through social media and they are not even them sending, it is a robot email automation system? This tech stuff is getting ridiculous... as they are trying to build a following for ad revenue? why can't they just talk to the person old school

Really excellent. Client has their DNS and mail server on a Virtual server and R getting "Message not delivered" "Relay access denied" (554.5.7.1) from some senders trying to email them. Maybe you could do a Sender Policy Framework (SPF) video. Thanx

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Good presentation. DNS should be DOMAIN Name System (@ 2:35).....:)

Brent J Dreyer good work try popular your youtube channel.

This is the best video about this subject ever created. I watch it a lot. Thank you.

very good video ! Muy enrichissante !

Dude you have a bad taste in music

Thanks.

WOW!! It's a great work @Mr. Brent J Dreyer. Really helpful to understand the background mechanism of an email. Thanks.

Tatti hai yeh toh

dns: domain name system. Please edit

Excellent explanation! Thank you.

Man something so easy is really very complicated. No wonder I didn't understand why I was having problems.

Excellent work. Thanks a million!

Very well made video! Watch a lot of them and would recommend for anyone wanting to learn what happens after you hit send to view this one!

DNS=Domain Name system please correct it

excellent work...keep going BRO

thank you sir this is an excellent video if you can explain to me please what is the route on powermta if you have any information i've search a lot of the meaning but i didnt found anything thank you for the video :)

hi there thank you very much!!! can you do a similar video for Web-Based Clients instead of private ? would much appreicate that since i am a beginner

Very helpful video. Thanks.

easy to understand, really good video !!!

This video is great! Important concepts are explained and I didn't get bored by too many technical details. If only everyone knows how to explain things this way. Thanks!

Hi There! Thank you so much! This was very nice presentation... the rhythm and flow were awesome. My mind was able comprehend and you've answered vital questions in fast, yet full detail. Bueno! [ I watched four other (each generating questions unanswered) ... yours was most 'complete' ! ]

Really good overall in describing the general mechanics to someone who is tech illiterate, BUT: "SMTP SEVER" > ""SMPT SERVER", " DNS Dynamic Name System" > "DNS =Domain Name System" (Domain addresses are not dynamic, they are assigned, and looked up on a Domain Name Server.) and IP addresses are not 12 digit numbers. "12 digit addresses" are for IPv4 in decimal notation, which is being transitioned to IPv6. IP addresses actually are transmitted and processed as binary values, represented as either four or 6 character groups for ease of entry by humans, each being between decimal values as 000-255 for use by consumers. Techs use hexadecimal 00-ff to represent the same values. The actual numbers represented by IPv4 are between 0 and (256 x 256 x 256 x 256 -1) 4,294,967,295 or ffffffff. IPv6 was necessary because the number of assigned address hosts increased beyond 2 billion (US usage) before 1/4 of the world population had internet access, indicating that there would be more directly connected devices with addresses than people within a generation. Also "Recipients router" > "Recipient's ISP's router". That router dowsn't reassemble packets into messages, it forwards them to the email "SMTP server", SMTP being a protocol, not a service, it is frequently intergrated into the same physical box as the Recipient ISPs Mail server, which is not a POP3 or IMAP server, those also are protocols, not services. Ignored were encryption and/or tunneling at any point in the transmission process. There also was an assumption that the receipient and senders email clients were apps running on PCs, when today most email is done using web browsers, and web apps, not client side apps.

a perfect job.

Thanks for sharing! I really enjoyed your presentation.

nice

Good video

Never seen something like this in Decades, Awesome Job Brent!!! Please keep uploading and keep sharing knowledge. God Bless You :)

Very nice video. I am amazed at the explanation with video. Keep working on making such video on others topic. Worlds need you man.

very very thanks .very very very good video. method of explaining is fantastic.

very very nice. thanks a lot.

That was Amazing way to Explain... It helped me a lot...

Thank you so much Brent! I really appreciate this video very useful. Email is really complicated for me but after watching this video I can now understand how it works.

Is there anyone knows the name of the background music??

This is a great video! Thank you for your effort. I would like to ask a question. Does every router add some information with the email? If yes how and what kind of? Thank you.

Hi Brent, Thank you :) very much for providing such an excellent Video, It will help me a lot, and if possible, could you please publish on email header analysis. once again Thank you very much Brent. Rajesh chintala from India

Great video. Thank you so much :)

Excellent video!

Thank you