Computer Consultant, Computer Consulting, Computer Backups, Virus Removal, Website Design, Data Loss Prevention, Southeastern Pennsylvania, EchoSystem Industries, LLC

EchoSystem Industries, LLC - Improving your business with technology

EchoSystem Industries, LLC - Computer Consulting and Automated Off Site Computer Backups
Improving your business with technology

We Are Here To Help!

Our Services

“My experience with EchoSystem has been wonderful. They are really helping my business run more smoothly and freeing my time up to work on building my clientele.”

- Beverly Moore with Advanced Mortgage Lending

Search:	Browse by Category:

FAQ Main Page > Website Hosting

ASK QUESTION

Why can I receive emails but I not send?

Tell a Friend

Author: EchoSystem Industries, LLC

Views: 5
Votes: 1

Over the last few years, more and more ISP's have started to require their subscribers to use their SMTP server to send mail. This allows them to monitor spammers, and help to reduce to the overwhelming amounts of spam and exploitation that occurs daily with email. You may want to contact your ISP to see if they are willing to work with you on this issue or try port 587 or 26 which may be open on our servers.

If you can not send email using our servers, check on this list below for your ISP or perform the test listed below. Provided with each ISP that blocks, is their respective SMTP server setting.

This list has been compiled by the Support staff over the last year. It is not an official release of ISPs that require that there clients use their SMTP servers, however, it is as accurate as possible at this time.

Testing SMTP server access:

1.) Access a command line (in Windows, Click Start -> Run, and then type in CMD; on a MAC, use the Terminal application in the Applications/Utilities folder.)
2.) Type in TELNET DOMAIN.COM 25 (replace DOMAIN.COM with your actual domain name)

220-server.helpmypc.biz ESMTP Exim 4.63 #1 Sat, 31 Mar 2007 13:53:13 -0700
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
If you do not see this error message, your ISP is very likely blocking the ability to send mail through servers other than theirs.

ISP's that Block Port 25

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.
Bresnan Communications: mail.bresnan.com
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
Plala: plala.or.jp
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: smtp.suddenlink.net
Sympatico: smtp1.sympatico.ca
The-Beach.net: mail.the-beach.net
Verio: smtp.veriomail.com
Verizon: outgoing.verizon.net (please note that Verizon FIOS should not have any issues with SMTP blocking, only the DSL or other services)
Verizon(alt): smtpout.verizon.net (please note that Verizon FIOS should likely not have any issues with SMTP blocking, only the DSL or other services)
Videotron: relais.videotron.ca yourlink.ca (Canadian): contact service provider for Settings.
Puget Sound Network, Inc. : contact service provider for Settings: http://psni.com

More will be added as we go, but this is as comprehensive a list we have to date.
If you know of another ISP and it is not listed here, please let us know and we'll be sure to add it.

Last update: 01:54 PM Saturday, March 31, 2007

Here is what our clients are saying about us.

“Rick (from EchoSystem) always goes the extra mile when it comes to customer service. I depend on him and his company to remotely back-up my computer daily which adds tremendous peace of mind in the event of a computer crash. But what I most appreciate about Rick is that I can contact him virtually 24/7 with a computer problem and he responds promptly and graciously. It's great to have someone as dependable as Rick for any computer issues that arise.”

-Karen Klein
Fulcrum Information Resources

Find out more

Are you protecting your company's most valuable asset?

Secure Automated Off Site Computer Backups

Studies show most businesses that experience a catastrophic loss of computer data never recover. Our Secure Computer Backup Service can help protect your business by using the Internet to send encrypted copies of your critical data files to our off-site data storage facility every night..

Find out more

Resources