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Couple of links from previous Q's I commented in:-<br />
<br />
<a href="https://www.experts-exchange.com/questions/23175554/Watchguard-smtp-header-problem.html" rel="ugc">https://www.experts-exchange.com/questions/23175554/Watchguard-smtp-header-problem.html</a><br />
<br />
<a href="https://www.watchguard.com/auth/login.aspx?r=%2fsupport%2fissues%2ffirebox%2fkiproxy_1000.asp%3f" rel="ugc">https://www.watchguard.com/auth/login.aspx?r=%2fsupport%2fissues%2ffirebox%2fkiproxy_1000.asp%3f</a><br />

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Couple of links from previous Q's I commented in:-

https://www.experts-exchange.com/questions/23175554/Watchguard-smtp-header-problem.html [https://www.experts-exchange.com/questions/23175554/Watchguard-smtp-header-problem.html]

https://www.watchguard.com/auth/login.aspx?r=%2fsupport%2fissues%2ffirebox%2fkiproxy_1000.asp%3f [https://www.watchguard.com/auth/login.aspx?r=%2fsupport%2fissues%2ffirebox%2fkiproxy_1000.asp%3f]


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Have a client who has an e-mail bouncing with following:<br />
<br />
undeliverable to name@company.com<br />
<br />
Body of message generated response:<br />
500 Line too long<br />
<br />
then gives the original message.<br />
<br />
I can telnet into the server. &nbsp;Other e-mails are arriving. &nbsp;Watchguard firewall with spamblocker in place.<br />
<br />
Thanks<br />

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Have a client who has an e-mail bouncing with following:

undeliverable to name@company.com

Body of message generated response:
500 Line too long

then gives the original message.

I can telnet into the server.  Other e-mails are arriving.  Watchguard firewall with spamblocker in place.

Thanks


500 Line too long

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.