Tuesday, June 8, 2010

Verizon blocking SMTP port 25

In an attempt to "protect you" as a Verizon customer you can no longer use traditional SMTP over port 25 with a "3rd party" email provider. In other words, if you have your own domain, use a "thick client" to access your email, or need to access email from ANYONE other than verizon.net it will now be "blocked for your protection". I discovered this, this morning while wasting about 90 minutes of my life trouble shooting services, firewalls, filtering, etc.

Their solution is:
1) Just use webmail
2) Just use verizon.net, scrap the other domain.
3) Buy a static IP, but first realize, this makes you a Verizon business customer, instead of residential, higher price, new contract, cancellation fees apply for moving from residential to business, not sure how their math worked on that one.
4) *Best* Send email on port 587 instead of 25, may require configuration changes on the server side, not bad if you run your own server but this may take some work as well.


This kind of reminds me of the time they blocked access to 4chan..


Kind of scary when you realize they can take away pieces of the internet at will.


Verizon blocks SMTP outbound (for your protection)