My ISP Blocks port 25 for SMTP Outgoing Mail

You may use port 26 for your SMTP outgoing mail setting. You can make the adjustment in your email program of choice. WebzPro allows the use of both ports 25 and 26 for sending out going mail.

Below is a list of ISPâ€TMs that currently restrict port 25 in some way.

 

. @Home

. Adelphia

. AltaVista Free Access

. Alltell

. Atlantic Broadband

. AOL International ***

. Ameritech

. AT&T BI

. AT&T Worldnet ****

. Arch Broadband

. Bell Canada

. Bell Internet

. Bell Sympatico

. Bell South

. Bell, Southwestern

. Bell, Pacific / Pacbell

. Bigpond

. Broadwing

. CableAmerica

. Cableone

. Cablevision ** ***

. Charter

. Citlink

. Coax

. Comcast ** ***

. Consolidated Communications

. Cox

. DCAnet

. DSLExtreme

. Earthlink *****

. Epix

. Erols

. Etisalat

. Flashnet

. Frontiernet

. Fuse Dialup/NET

. GTE

. Highstream

. IONet

. Joi

. Juno

. Knology.net

. MCI

. MediaOne

. Mindspring

. MSN ***

. Nebi

. Netcom

. Netzero

. Newnorth

. Newsouth - Renamed to NuVox

. NuVox - Reseller of BellSouth

. Optimum Online ** ***

. Panix

. PeoplePC

. Prodigy

. Quixnet

. RoadRunner (New York City Area)*

. RCN

. SBC Global

. Sprynet

. Speakeasy

. SpeedneT

. Sprint *****

. Starpower

. The-Beach

. T-Mobile *****

. uu.net

. Verio

. Verizon ***

. Videotron - Canada

. Worldcom

. Yahoo / SBC Global

. Yourlink

. ZoomTown

 

*(regional rules apply, check with your ISP)

**(filters some webhosting providers for both POP and SMTP)

***(cannot use their outgoing SMTP to relay domains other than their own)

****(limited blocking, sometimes they will enable customer as per customer's
request)

*****(may reroute outbound SMTP back to their own SMTP server)

 

 

 

Was this answer helpful?

 Print this Article

Also Read

Outlook Email Error 0x800ccc0d or 0x800ccc0f

There has been some resent issues with Outlook and Outlook express giving an error: "Error...

Certificate errors in Browser

Sometimes, there are errors with Certificates for the servers. You may experience something like...

How much space do I have for my POP Accounts?

We do not limit the amount of space on your POP. You can have as much as you want, however we do...

How do I check my e-mail through a web browser (webmail)?

Login to http://www.your-domain.com/webmail/ or http://webmail.your-domain.comUse your username...

Can you forward all my email to a separate email address? If so, how do I do it?

http://www.webzpro.com/tutorials/cpanel-x3/cpanel-x3-forwarder.html