what happens when address send by address register is lost before reaching the destiantion - cpu-architecture

What happens when address send by address register is lost before reaching the destination?
A teacher asked this question and I couldn't find the answer anywhere.
Please help.

Related

Outlook Not Receiving Emails Sent From Django Website

My Django website has several forms which users fill out and when they submit them an e-mail is sent to my email address. This works when I use my Hotmail address as the receiving address, but not when I use my Outlook email address (the address I'd like to use). I also tried another Outlook address and it worked. So it's just my Outlook that's not receiving them. The Outlook address is also the sending address.
I have no idea why my Outlook address won't receive e-mails from my website, yet it receives e-mails sent from other sources. It displays no error messages so I really have nothing to go off. I have Googled a lot but can't find exactly what I'm looking for.
I know my question is vague, but I'm hoping someone can at least point me in the right direction or give me something to look into, because there are no error messages or anything for me to go off. I have also been through the settings in Outlook and can't find anything that would be blocking it.
PS I didn't include any code as I really don't know how it would help, though I can if you think it would be useful.
Thank you.
Have you checked your SPAM/JUNK folder. This might be possible that emails are getting delivered to your SPAM folder instead of INBOX.
Check your Firewall Settings might be your Firewall is creating the problem.
Check out some possible fixes mentioned here: https://www.tipsoverflow.com/why-outlook-not-receiving-mails-but-can-send-fixed/

Emulating a #hotmail.fr email address

I have a big issue here. A friend of mine has lost access to his facebook account and want to recover it.
Unfortunately, he used a #hotmail.fr email address as its security address and cannot receive any instructions to recover his password since #hotmail.fr are now deleted and forbidden by Microsoft.
Any idea on how I could help him? I have thought about emulating the #hotmail.fr address somehow - but never did that before!

Once I send an email, how much information can I get about its progress?

I'm designing a capability to send emails out for my app.
I was wondering once I send out an email, is there anyway to find out whether
the email address exists and is real
the email was received
if not received, what the problem was? (mailbox full, email
address
invalid etc.)
the email was read (probably asking too much
but
would be good)
Do I get any feedback at all?
I'm using the SMTPClient in the .NET framework to do this.
no. You can find out if the target server accepts the address. but you can not find out if the account really exists. even if the server accepts the address it could be bounced later.
no. if you don't get a bounce, you have to assume it was delivered. there is no guarantee. it could have landed in a spam box etc.
if a mail is not received you either get a bounce message (or depending on how you send the message you get the error directly in the smtp transaction while sending it to the target server).
no. you can request a read-receipt or do fancy stuff like embedding links to external tracker images. but all this stuff is usually blocked by default.

Website is not sending emails to email add on MS Exhange

Having problems with setting up my website to use MS Exchange to send emails. I dont want to use the hosts email system.
The MS Exhange has been set up, with email addresses created.
My webpages are using Persits.MailSender which the host supports.
Do i need to change MX records? A records?
Sorry, im not clued up with network side of things, any help would be appreciated
When i email direct, the email address on the exchange picks up the emails. BUT if i email through the website, it goes to the annoying webmail the host is provinding, and not to the exchange
I find this strange, the same email address receiving emails at different places!
Im using ASP, and I have a website set up, which has been sending emails for the last 12 months, the host has messed up (again) somewhere, but doesnt know what is wrong (as usual)
There are no errors, the email always gets sent.... but to the wrong place.
I would look into actually trapping and knowing your errors. That way you can see precisely why it fails and have something to work with. As it stands, your question isn't really answerable. No language nor framework is provided. We don't know if the mail server is confirmed to be working or accessible outside your netowrk; we don't know how your are referencing it or if you are passing user credentials; we don't know what error you're getting...
At this point, you're not debugging, you're just sort of swinging in the dark. Find the point of failure and then research that data point to get a solution. Debug, catch errors, log, step through your code. All good ideas.
Ok i figured it out, I deleted the mail domain on the host as that was the first place the website looks to send an email. Once the mail domain was deleted the emails were sent to the external hosted mailserver MS Exchange email address. Yay!

How to find ip address of email sender of yahoo mail or gmail?

How to find ip address of email sender of yahoo mail or gmail?
Just a thought - If you are looking for the IP in order to track down a spammer or something similar - better report the email address directly to yahoo or gmail.
One more issue is that if the IP used to send the mail is/was dynamic, it can possibly help you only aproximately geo-locate the sender, nothing more.
There is a technique that sometimes works, and it's a well-known trick used by spammers.
Reply to the email with an HTML email that includes an image hosted by a server you control, with a unique query string in the URL. If the person opens the email AND displays images, your image will load. You can see which IP address loaded the image, and match that with the email address where you sent the image. Of course, even if this works it will give you the IP address where they read your message, not the one from which they sent the first email. This trick is the main reason that email programs check before they load images now.
You could also sue them, get a subpeona and force Google or Yahoo to get the IP address from their logs.
Looking at the mail headers, you can see who sent it and the host IP, but sender IP addresses aren't included in the header.
You need to look into the mail header which is where you can find the ip address.
Edit: Funny that this was the correct answer but was the only one that got a negative vote. You can go to this link to find out more http://aruljohn.com/info/howtofindipaddress/#gmail and to use some scripts that will make it easier for you. But in short, the IP address can usually be found in the header. Reading the header is different for every email provider so you will have to read to find out how. Some email services such as Google will never share the sender IP. But I've heard that if a sender uses a mail client such as Thunderbird, that the IP can always be tracked, haven't tested it yet though. Good luck!
It's quite easy to track the IP address.
And to track address of sender first we need to retrieve IP address is the sender from the mail and then convert that IP address in location with help of no of websites which offer this feature.
It's a different process for both Yahoo and gmail and putting whole steps will take around 70 lines so I an just putting it's link I found on a website
http://www.rybersoft.com/2016/04/how-to-find-location-of-email-sender.html