1.1 --- a/data/dictionary.xml	Mon Aug 12 15:05:25 2013 +0200
     1.2 +++ b/data/dictionary.xml	Mon Aug 12 18:12:50 2013 +0200
     1.3 @@ -196,7 +196,17 @@
     1.4  	</concept>
     1.5  	<concept>
     1.6  		<term abbreviation="MUA" completeForm="mail user agent" language="en"/>
     1.7 -		<explanation language="en"><text>an e-mail client software</text></explanation>
     1.8 +		<explanation language="en">
     1.9 +			<text>
    1.10 +				an e-mail client – a software used for managing user's e-mail;
    1.11 +				because the MUA (like most client software) runs only when user needs it,
    1.12 +					the messages from the Internet are received by a remote MTA over the SMTP protocol,
    1.13 +					then delivered using an MDA into user's remote mailbox,
    1.14 +					from which they are obtained by the MUA using POP3 or IMAP4 protocols;
    1.15 +				when sending an e-mail, the MUA composes the message in RFC 5322 format and then submits it using the SMTP protocol to a MTA or MSA server;
    1.16 +				examples of MUA: Mozilla Thunderbird, KMail, Evolution, Mutt, Lotus Notes
    1.17 +			</text>
    1.18 +		</explanation>
    1.19  		<tag>computer</tag>
    1.20  		<tag>messaging</tag>
    1.21  	</concept>
    1.22 @@ -207,6 +217,12 @@
    1.23  		<tag>messaging</tag>
    1.24  	</concept>
    1.25  	<concept>
    1.26 +		<term abbreviation="MSA" completeForm="message submission agent " language="en"/>
    1.27 +		<explanation language="en"><text></text></explanation>
    1.28 +		<tag>computer</tag>
    1.29 +		<tag>messaging</tag>
    1.30 +	</concept>
    1.31 +	<concept>
    1.32  		<term abbreviation="MDA" completeForm="message delivery agent " language="en"/>
    1.33  		<explanation language="en"><text></text></explanation>
    1.34  		<tag>computer</tag>