Outlook Error: 0x800CC79

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There seems to be a problem with my mail, I keep getting the following error message:

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was ''. Subject: '', Account: '', Server: '', Protocol: SMTP, Server Response: '550 ... Relaying Denied', Port: 25, Secure (SSL): No, Server Error: 550, Error Number: 0x800CCC79



What should I do, how can this error be corrected?


When trying to send an email message you receive the following error that your email message can't be sent due to SMTP rely blocking.


The cause of this error is due to the fact that all SMTP servers within the IndicHosts.net network require what is called 'SMTP Authentication'Â. Without this setting turned on, you will keep getting the above error. Please enable this setting within your email client.


Please note that not all providers in the United States allow users to access Port 25 (SMTP). There are many that block such ports. Please find a list of a few below:

AOL: smtp.mail.aol.com
Adelphia: mail.adelphia.net
Ameritech: mailhost.det.ameritech.net
Astound Broadband: smtp.ca.astound.net
AT&T: mailhost.att.net
AT&T Global: smtp1.attglobal.net
Bell internet highspeed (Canadian): smtp10.bellnet.ca
Bell south: mail.bellsouth.net
bigpond.com (Australian): contact service provider for Settings.
CableOne: mail.cableone.net
Charter Communications: smtp.chartermi.net
Charter.net: smtp.charter.net
CharterTN.net: mail.chartertn.net
CharterMI.net: mail.chartermi.net
Cinncinnati Bell/Fuse Dial-up: smtp.fuse.net
coax.net: smtp.west.coax.net /east / central
comcast: smtp.comcast.net
Cox: smtp.west.cox.net - smtp.central.cox.net - smtp.east.cox.net
Earthlink: smtp.earthlink.net
Etisalat (UAE): smtp.emirates.net.ae
epix: out.epix.net
erols: smtp.erols.com
Frontiernet.net: smtp.frontiernet.net
fuse: smtp.fuse.net
Icehouse.net: mail.icehouse.net
iquest.net: mail.iquest.net
ISP.com: mail.isp.com
Juno: smtp.juno.com
Megared (Mexico): contact service provider for Settings.
Mindspring: smtp.mindspring.com
MSN: smtp.email.msn.com
MSN.DSL: secure.smtp.email.msn.com
NEBI.com: mail.nebi.com
Netcom: smtp.ix.netcom.com
NetZero: smtp.netzero.net
OOL (Optimum Online): mail.optonline.net
Optusnet: mail.optusnet.com.au
Pacific Bell (Pacbell): mail.pacbell.net
panix.com: mailhost.panix.com
PeoplePC: smtp.peoplepc.com
Quixnet.net: smtp.quixnet.net
RCN: smtp.rcn.com
Road Runner(NYC): smtp-server.nyc.rr.com (for other states, and regions contact your Road Runner Support team)
Rogers Hi-Speed (Canadian): smtp.broadband.rogers.com
SBC: smtp.sbcglobal.net
SBC Yahoo: smtp.sbcglobal.yahoo.com
speakeasy: mail.speakeasy.net
Suddenlink.net: smtp.suddenlink.net
sympatico: smtp1.sympatico.ca
The-Beach.net: mail.the-beach.net
Verio: smtp.veriomail.com
Verizon: outgoing.verizon.net
Verizon(alt): smtpout.verizon.net
Videotron: relais.videotron.ca
yourlink.ca (Canadian): contact service provider for Settings.
Puget Sound Network, Inc. : contact service provider for Settings: http://psni.com


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