SEI Communications

SEI Email Technical Support

Client Setup
  • How to setup your Android for Email
  • How to setup your iPhone for Email
  • How to setup Mozilla Thunderbird
  • How to setup Outlook Email - older versions
  • How to setup Outlook Email - newer versions
  • How to setup Outlook Express for Email
  • How to setup Windows Live Mail
  • How to setup Windows Mail

    Frequently Asked Questions (FAQ)
  • What is Email?
  • How Secure is email?
  • What is my email address?
  • How do I address email?
  • Why can't I download my email?
  • Why is there a delay on my email delivery?
  • Why can't I get attachments?
  • I don't want to requote the message when I reply..what do I do?
  • Why do I get an error when I try to access Webmail
  • What is SPAM, UCE (Unsolicited Commercial Email), and Mail Bombing?

    Q: What is email?
    A: Email is a communication medium that uses the connections of the Internet to pass messages back and forth between Internet users. In order to use email, you must have a "mail browser" which is included in both Internet Explorer and Netscape. Check the "Help" menu on whichever software browser you are using. The "help" menu usually allows you to search by topic and is very helpful in explaining the various commands available to you.

    The mail browser is available to you once you make the connection to your Internet server and click on the "mail" icon in the browser window.

    Mail is received from other servers and each message is appended to YOUR mail file in the order in which it was received. When your PC establishes a connection to the server, it asks for any mail which matches your userid. The server then sends the COMPLETE file to your PC where is it broken down into separate email messages by the email software on your PC. The file on the server is deleted once the PC acknowledges receipt.

    Q: How Secure is email?
    A: Email is NOT to be considered "secure" at all. If you don't want something possibly broadcast to the world, then DON'T send it. Our server is secure, but unfortunately we can't guarantee EVERY other server on the Internet that your email might go through to get to it's intended destination.

    Q: What is my email address?
    A: Your email address is your assigned userid, i.e. I.E. to get mail your sender should address it to

    If you use any other name in your mail browser other than your assigned email name, your messages will reject. Please make sure your address matches the format stated above. NOTE: when sending mail to another user on our server, it is NOT necessary to put in the address.

    Q: How do I address email?
    A: When sending email to another user on seidata, all you need put in the "address" box is the users name.

    If you attempt mail to ANY user with a space in the address, it will reject. If you attempt to mail with your return email id other than your, it will reject.

    When sending email to a user on another server, you must use the form username@domain.{com/org/net/etc}. If you wanted to send email to a user name test100 at, you would address it as

    Q: Why can't I download my email?
    A: Either one of two things is wrong. If you get a message that the POP 3 server has timed out, and when you look at the information bar along the bottom of your mail browser and it has stalled while downloading messages (i.e. it says "downloading 3 of 50"), it is probably because there is a message in the mail file that is of excessive size (i.e. message 3 in this example). If this is the case, you can do one of two things:
    1. Contact Tech Support and have them delete the offending message in the mail file.
    2. Wait until the large messages downloads. If you choose this option, DO NOT pound the "Get Mail" keys, or any other keys. Just be patient and wait. The message will eventually be downloaded to your PC. The time it takes is related to the speed of your computer and the speed of your modem.
    It is recommended that you NOT send very large files via email. This medium was not designed for this type of activity. An acceptable limit would be a maximum of 50K bytes (this would be equivalent to 125 8.5x11 inch pages). Some Sendmail routines limit the size of files they will accept. This limit is arbitrary and set by the administrator of each server.

    In addition, if this is the case, please contact the sender and advise them that the file they attempted to mail to you is too big. You can then use ftp to download the file if you still need it. (See FTP elsewhere in this FAQ).

    If you just can't seem to log in, check that the email address in your options settings is correct. (Select Options, Mail and News Preferences, and check the Servers and Identity tabs.) On the SERVERS tab, the Incoming and Outgoing SMTP server name must be The POP3 name must be your userid. On the IDENTITY tab, "Your Email" must be your

    Q: Why is there a delay on my email delivery?
    A: Once an email is sent from your PC to our server it is put into the "queue" for delivery. At that time, the system attempts to "lookup" the domain name, i.e. it attempts to translate the domain name into an IP address in order to make the connection to the distant server. If the server can make the translation the process proceeds and the email is sent to whatever server the address "lives" on . Typically, there is no way to know exactly how the message will be routed. Each server the message goes through to connect to the "end" server, has its own "Sendmail" routine and timings. Depending on how many "jumps" the message makes, and what status the timers are set at on each "jump", it may take more than a day or two to deliver. In some cases, a server can get the message and then go out of service before the message is sent. This in turn adds to the delay. Usually though, delivery is "instantaneous", but NOT always and this is never guaranteed. To complicate things, many servers run anti-spam/anti-virus software that the email has to go through before being delivered.

    If an immediate connection cannot be made to your destination, the message is left in the mail "queue" and a resend is attempted every 30 minutes for up to 5 days. After 4 hours, you will be automatically sent an "informational" message that the mail cannot be sent. Please do NOT resend the message! At the end of the 5 day period of time, if the message is still not sent, the server is configured to delete the message, on the assumption that the message will never be delivered due to incorrect addressing or some other permanent error.

    Occasionally, the name to IP address translation cannot be made because of problems with the Domain Name Service that does the translations. There can be problems within the definitions for the receiving domain, or that domain may be out of service for many reasons.

    Q: Why can't I get attachments?
    A: As a general matter, we do not recommend sending attachments. This is because not all Internet users are running the same types of Browser software, and more specifically, attachments are used to send viruses and trojans. There are differences between the software as to what comes equipped within it. In addition there are so many different types of files that not all browsers have the appropriate "plug-ins" to handle all types of extensions. If you must send pictures, try to stick with .gif or .jpg formats. Most browsers automatically open these types of graphics files. If you must include data other than what you type by hand, then open a file that contains the data, "select all" and copy/paste the information into your email. Try to keep your emails a "reasonable" size. Sending pictures via email is not nearly as efficient as using the "ftp" facility (see elsewhere on this page for information on ftp).

    Q: I don't want to requote the message when I reply...what do I do?
    A: If you have a tendency to overquote in your Email replies, thereby making messages nearly unreadable after they have been back and forth a few times , there are a several things you can to clean them up and save bandwidth. Go to your Netscape mail reader, Options|Mail and News Preferences|Composition, uncheck the "automatically quote messages" block. Then, when sending a reply, if you just MUST quote the previous text, click Quote while in the reply mode and edit out all but what's necessary.

    Q: Why do I get an error when I try to access webmail?
    A: If you get the error message "No username provided, cannot proceed." when trying to login to the Webmail interface, it is probably because you have disabled your "cookies". Webmail requires "cookies" to be enabled. In your browser, go to Edit/Preferences/Advanced and set the option.

    Q: What is SPAM, UCE (Unsolicited Commercial Email), and Mail Bombing??
    A: SPAM or SPAMMING is generally unsolicited/unwanted mail or messages that are randomly cross posted to multiple User Groups. This includes, but is not limited to, sexually oriented material/advertisements,make money fast schemes, multilevel marketing and just about anything else you can imagine.

    UCE is what is commonly known by the Post Office as "junk mail", and usually consists of advertisements to buy something. Other types are "chain" letters, and those types of letters that say if you don't forward them you will have bad luck. There are servers on the Internet whose sole purpose is supporting this type of activity, because they make money this way.

    MAILBOMBING is the nasty practice of sending multiple messages to one (or more) users with the sole object of overloading their allocated file system space. All of these three practices are unwanted intrusions.

    If you feel you have been subjected to these unsavory practices, please forward ONE copy (only) of the mail message to the userid "abuse" and our Abuse Systems Administrator will look into the matter. Also, it is important to make sure to forward the COMPLETE message, including ANY header information. Without all of the header information, there is no way to trace back to the originating sender/domain.

    Back to the Top

  • Internet Tech Support
    Available 24x7
    800-925-6746 | 812-574-8800 | 812-667-8800
    812-744-8800 | 812-839-8800 | 812-873-8800
    Cellular Technical Support
    Monday through Friday ~ 8:00am to 4:30pm

    ©2019 SEI Communications. All Rights Reserved. Legal, Privacy, and Security Notices.