AR-AX1 (serv.man4). Axis 700-007 Troubleshooting scanning to e-mail using Telnet - Sharp Copying Equipment Technical Bulletin (repair manual). Page 4

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Sharp Electronics (UK) Ltd., NIS Systems Support 
 
NIS Bulletin 055.doc 
 
Page:  4 of 7 
 
Troubleshooting scan-to email problems. 
 
Scan to e-mail can be particularly troublesome in Some environments, due to anti-spam measures 
taken lay mail administrators and developers of e-mail software.  In general, the more secure a 
network is, the more likely you will run into some sort of problem.  Some of the possible causes of 
scan-to-email failures include' 
 
• 
Denied Relaying 
• 
Invalid Sender 
• 
Invalid Recipient 
• 
Attachment filters 
• 
Domain lookup failures 
 
Denied Relaying 
 
Symptom:  
550 5.7.1 Unable to relay for <email-address>  
Or 
 
550 5.7.1 <email-address>... Relaying denied 
(symptom description varies from mail server to mail server) 
 
When the network scanner creates an e-mail to be sent, it contacts the mail server through port 25 
(the SMTP port) and announces itself, it's e-mail address, and the recipient's e-mail address.  
"Relaying-Denied" messages will occur if:  
1. 
the IP or hostname of the network scanner is not in the list of acceptable hosts/IP addresses 
to relay for, AND  
2. 
the recipient is not handled by the SMTP server that the scanner has contacted. 
 
Solution:  
Add the scanner to the list of IP addresses or hostnames accepted as relay clients. 
 
Invalid Sender 
 
Symptom:  
Mail server sends error after the "mail from'" command is issued. 
 
A mail administrator (or the default options of the mail server) may require that the "sender" or "reply-
to" address be a REAL e-mail address.  This prevents people from anonymously sending unwanted e-
mails to people. 
 
Solution:  
Set the "reply-to" address of the scanner to be someone's real e-mail address, or create an e-mail 
account for the scanner.  The best solution is to create an account for the scanner and FORWARD 
that e-mail account to a real person. 
This makes the e-mail show up in the recipient's mailbox as being from the scanner, and allows any 
bounced e-mails to go to a chosen administrator instead of getting stuck in the mail queue without a 
destination. 
 
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