These ISPs are now limiting how many emails you can send out from your computer's location within a given time period and may suspend your ability to send email if you are sending more than 30 recipients at a time or more than 50 separate emails within an hour.īelow is an example of changing an exisiting Outlook email account configuration using Optimum Online as an ISP: (Note: this is not your Bower Web Solutions user id and password).īe aware that many Internet Service Providers (ISP) such as Optimum Online, Verizon, Comcast are now cracking down of "spam activity". On this tab, click on the "Log on using" radio button and enter your ISP username and password. After you have entered your IPS's SMTP server, you will will then need to click on the 'more settings" tab and go to the "Outgoing Server" tab. ![]() You simply need to edit the existing account and change the SMTP server for the account(s). If you already have your email program (such as Outlook, Outl ook Express, Eudora, etc) you do not need to recreate your email account information again. See the list below of leading Internet Service Providers and their Corresponding SMTP (Simple Mail Transfer Protocol) or "Outgoing Mail Server" settingsįor example, Optimum Online now require their internet customers use the following SMTP mail server to send out mail on their network: You will need to change your OUTGOING mail server (SMTP) from "" or "" to a SMTP mail server provided by your ISP. How can I send my email if my ISP is blocking Port 25? To protect your email account from spam, we suggest you take a look at our Spam Control Package. However, these efforts will not necessarily protect yourself from being flooded with spam. Filtering Port 25 is a common spam control measure used by Internet Service Providers and the advantages far outweigh the disadvantages when it comes to the war on spam. To help control the amount of spam and viruses that originate from your ISP (like Optimum Online or Earthlink, etc.) your Internet Service Provider may start to implement outbound Port 25 (SMTP) filtering. What Is Port 25 and why is it being blocked? ![]() If you are receiving an error message which states something along the lines of "Cannot send ougoing mail due to Port 25 being blocked", this usually indicates a problem with your Internet Service Provider (ISP) and NOT Bower Web Solutions itself.
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