Connectivity and managing Your Comcast Business network
Male IT Specialist Holds Laptop and Discusses Work with Female Server Technician. They're Standing in Data Center, Rack Server Cabinet is Open.
New Member

outbound smtp server


I am configuring our office scanner and need to be able to send outbound email.

What is the Comcast SMTP relay host to be used here?


0 Kudos
Official Employee

Re: outbound smtp server

Thank you so much for your time and patience! You have reached the right place for help with sending outbound email! Over social media, we are diligent in resolving all customer issues. It is known that there may be a delay between responses. However, the benefit and great thing about reaching out to us are you can always pick up where we left off at any time of the day! To configure an email client to use Comcast email (, the following settings should be used for sending and receiving email:


Incoming Mail Server Name:

Incoming Mail Server Port Number: 993 with SSL ON

If the Mail Client allows you to select an authentication method, choose STARTTLS

Only if Needed: 143 with SSL ON

Outgoing Mail Server Name:

Outgoing Mail Server Port Number: 587 (SMTP)

Only if Needed: 465 (SMTPS)

Encryption: TLS (use SSL only if TLS is not available)

Authentication: Type in your Comcast username and password


Please let me know if this helps.

0 Kudos