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Showing posts with label Why am I unable to receive or send an e-mail. Show all posts
Showing posts with label Why am I unable to receive or send an e-mail. Show all posts

Sunday 25 February 2018

E-mail

E-mail

Short for electronic mail, e-mail or email is information stored on a computer that is exchanged between two users over telecommunications. More plainly, e-mail is a message that may contain text, files, images, or other attachments sent through a network to a specified individual or group of individuals. The first e-mail was sent by Ray Tomlinson in 1971. By 1996, more electronic mail was being sent than postal mail.

E-mail address breakdown
How to send and receive e-mail
Writing an e-mail
What makes a valid e-mail address?
Advantages of e-mail
Related e-mail pages.
E-mail help and support.


E-mail address breakdown

The first portion all e-mail addresses, the part before the @ symbol, contains the alias, user, group, or department of a company.


Next, the @ (at sign) is used as a divider in the e-mail address; it is required for all SMTP e-mail addresses since the first message was sent by Ray Tomlinson.

How to send and receive e-mail
E-mail Program


To send and receive e-mail messages, you can use an e-mail program, also known as an e-mail client, such as Microsoft Outlook or Mozilla Thunderbird. When using an e-mail client, you must have a server that stores and delivers your messages, which is provided by your ISP or in some cases, another company. 


An e-mail client needs to connect to a server to download new e-mail, whereas email stored online (see next section) updates automatically when you visit the site.

E-mail Online

An alternative way of sending and receiving e-mail (and the more popular solution for most people) is an online e-mail service or webmail. Examples include Hotmail (now Outlook.com), Gmail, and Yahoo Mail. Many of the online e-mail services, including the ones we just mentioned, are free or have a free account option.

Writing an e-mail

When writing an e-mail message, it should look something like the example window below. As you can see, several fields are required when sending an e-mail:

The To field is where you type the e-mail address of the person who is the recipient of your message.


The From field should contain your e-mail address.


If you are replying to a message, the To and From fields are automatically filled out; if it's a new message, you'll need to enter them manually.


The CC or Carbon Copy field allows you to send a copy of the message to another e-mail address, but is not mandatory.


The Subject Line, although not required, should consist of a few words describing the e-mail's contents.


Finally, the Message Body is the location you type your main message. It often contains your signature at the bottom; similar to a hand-written letter.


What makes a valid e-mail address?

There are several rules that an e-mail address must follow to be valid:

As mentioned earlier, an e-mail must have a username followed by an @ (at sign) which is followed by the domain name with a domain suffix.


The username cannot be longer than 64 characters long and the domain name cannot be longer than 254 characters.


There should be only one @ sign in an e-mail address.


The space and special characters: ( ) , : ; < > \ [ ] are allowed. Occasionally, a space, backslash, and quotation mark work but must be preceded with a forward slash. Although valid, some e-mail providers do not allow these characters.


The username and e-mail addresses as a whole cannot begin or end with a period.
The e-mail must not have two or more consecutive periods.


Advantages of e-mail
There are a number of advantages of e-mail and the usage of e-mail versus postal mail. Some of the main advantages are listed below.

Free delivery - Sending an e-mail is virtually free, outside the cost of Internet service. There is no need to buy a postage stamp to send a letter.


Global delivery - E-mail can be sent to nearly anywhere around the world, to any country.


Instant delivery - An e-mail can be instantly sent and received by the recipient over the Internet.


File attachment - An e-mail can include one or more file attachments, allowing a person to send documents, pictures, or other files with an e-mail.


Long-term storage - E-mails are stored electronically, which allows for storage and archival over long periods of time.


Environmentally friendly - Sending an e-mail does not require paper, cardboard, or packing tape, conserving paper resources.

Why am I unable to receive or send an e-mail

Why am I unable to receive or send an e-mail

Internet or Network connection missing

Internet or network connection failures keep your e-mail program from sending and receiving messages. Verify that your computer can connect to the Internet or network.

Issues with Internet or Network e-mail server
Make sure that your Internet e-mail server or your Network e-mail server is not encountering issues by contacting either your Internet Service Provider or your Network administrator. They should be able to tell you if there are any e-mail server issues on their end that are preventing you from receiving or sending an e-mail.

E-mail program incorrectly configured
Many e-mail related problems are because of improperly configured mail settings. Verify that your e-mail program is properly configured to connect to your Internet or Network e-mail server. It is very common for the e-mail program to have either the incorrect POP or SMTP address.

As mentioned on the above links to POP and SMTP, the POP server is used to retrieve mail and the SMTP server is used to send mail. Therefore, if you are having difficulties receiving e-mail, verify that the correct POP server and port is defined. If you are unable to send mail, verify that the correct SMTP server and port is defined.

The default SMTP server is port 25, and the POP3 server is port 110. However, the actual POP3 and SMTP server name varies depending upon your Internet e-mail or Network e-mail provider.

Note: Users may be unable to send an e-mail through an ISP other than their own due to SMTP restrictions that try to reduce spam on the ISP's network.

If you use a different Internet or Network connection while sending e-mail and are unable to send e-mail, verify with the ISP or Network Administrator that an SMTP block is not in place.

When an SMTP block is in place, you will receive one of the below errors.

  • SMTP error
  • SMTP rejected
  • Server response 550
  • SMTP prohibited by administrator
  • Error 0x800ccc79

Security issues

All Internet and Network servers require that users login using their username and password to send and receive e-mail.

Verify that you are entering the correct username and password when attempting to send or receive your e-mail. If you are not being prompted for a username or password, it is likely that the username and password are configured within the e-mail program. Verify that the correct username and password have been entered into the e-mail program's configuration.

Note: Some network administrators or Internet service providers may expire your password after a length of time. If the password is not changed within that time period it is possible that you will no longer be able to receive e-mail until the password is changed.

Spam filter
Spam filters can inappropriately cause you to not receive e-mail. If a spam filter is improperly configured or your ISP believes a message is a spam, it will either placed in the Spam folder or deleted before you can read it. Only your Internet service provider can tell you if this is occurring.

Almost all e-mail programs today have some protection that helps protect users from spam. These programs, scripts, and add-ons can also cause e-mail to be wrongly deleted. If you have problems getting e-mail, make sure all spam filters are disabled on your end as well and no mail is in the junk or spam folder, or in the trash bin.

E-mail program corruption or other issues
If you have checked or verified each of the above recommendations and are still unable to receive or send e-mail, the e-mail program may have issues. Try uninstalling and re-installing your e-mail client. Alternatively you could also try an alternative e-mail client or service.

Microsoft Outlook users may also want to see the Microsoft Outlook help page.

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