I live in a retirement complex with a couple of hundred other residents. Many of the other residents use Xfinity for email. About 5-6 weeks ago, a number of us began having sporadic email problems when trying to sync our Xfinity email using a local mail client -e.g., Apple Mail, Outlook, Thunderbir

I am a former xfinity subscriber that kept my email address.  I access my email through Thunderbird and recently I started to get this error message when I attempt to send messages --   An error occurred while sending mail: The mail server sent an incorrect greeting:  resomta-ch2-15v.sys.comcast.net

All of a sudden today I'm getting the following error message when trying to send an e-mail via Thunderbird: resomta-a1p-077245.sys.comcast.net resomta-a1p-077245.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available. I have seen this issue in the forums, but neve

This was asked about 3 years ago but there was no resolution to the problem. In the last couple of day, I have been getting the following error when I try to send email from Thunderbird: An error occurred while sending mail: Outgoing server (SMTP) error.  The server responded: resomta-h2p-555

I am having issues with my comcast outgoing email over SMTP from my home wifi network. When I atttempt a telnet test I am getting the "421 resomta-a2p-647652.sys.comcast.net resomta-a2p-647652.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available" error message. It

My wife and I just got new phones (1 iPhone & 1 Android) and in attempting to setup our comcast.net email on them we continued to run into errors. The most recent error I received was "Can't Connect to Server - Temporarily blacklisted IP Address Try again later." That got me thinking that

smtp;554 resimta-a1p-087402.sys.comcast.net resimta-a1p-087402.sys.comcast.net ESMTP server not available

I have been using outlook to check my comcast emails for at least 10 years now. Never an issue. All of a sudden last night I could not send anything from outlook.   No password changes.  No changes period.  I get a message that says there is an error connecting to the smtp server. I can't send email

after being required to change my xfinity password when logging into xfinity mail, i failed to get new emails on my MacBook. i changed the password in the apple mail application, and was able to get incoming emails. however, outgoing emails would not go and the outgoing server shows as being "offlin

On Dec 12, 2024 I posted regarding this error when I try to send e-mail out of Thunderbird using a Windows 11 computer. I thought I had the problem fixed, but it returned today (01/02/2025).   I found that if the McAfee VPN is turned on, you MIGHT get this error.  Turn off the McAfe

A friend gets an error message a couple of times a week when he sends emails to me. The complete message is: <[Edited: "Personal Information"]>: 554: resimta-c2p-559906.sys.comcast.netresimta-c2p-559906.sys.comcast.net ESMTP server not available Most of his emails go through OK, but occas

Outgoing mail on iPhone does not work. SMTP server “smtp.comcast.net” is not responding. Check your network connection and that you entered the correct information in the outgoing mail server

I work at a retirement community where we have over 300 residents that live here and a lot of them use Comcast emails and we are noticing more often than before that the outgoing smtp server stops working for residents. Since we've gotten a lot of complaints recently I have been digging through fire

I am a former xfinity subscriber that kept my email address. I access my email through Thunderbird. I am able to send one, possibly two e-mails a day before I receive the following error message: Sending of the message failed.An error occurred while sending mail: Outgoing server (SMTP) error. The

I have been using the Comcast/Xfinity server for several years with no issues. Today I received an error from my Gmail client that my SMTP is misconfigured. I checked the settings and they are per the Xfinity support FAQ i.e.smtp.comcast.net port 587 Secured connection using TLS Username: my_xfinity

I received an email to claim a free xFi Pod, however when I tried to order one, I received the below message. Temporarily unavailable The product you’re interested in isn’t available for purchase at this time. Are these out of stock? If so, how will I know when they will be available outsi