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user_1z3hyd
1st Topic

1 Message

Tuesday, April 8th, 2025 12:18 AM

Can’t send outgoing email

Hi. I can’t send emails. I need to send a email and it says my password and/or user name is incorrect. It’s not! What’s going on?

Question

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Updated 

5 days ago

103

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Latoque

Expert

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29.7K Messages

1 month ago

How are you accessing your email?  Are you using only the webmail UI and a browser?  Or a desktop client like Thunderbird?  A mail app on a phone?  Something else?

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XfinityJohnG

Official Employee

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1.7K Messages

1 month ago

Thank you for reaching out to us here @user_1z3hyd. If you are still having password issues with the email service the best option to resolve that is by reaching out to the customer security team at the https://spa.xfinity.com/ site. 

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user_qs88o5

Visitor

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2 Messages

19 days ago

I've had the same/similar issue.  Trying to send an email fails most of the time, but sometimes will go through.  After braving the automated/AI sentries at Comcast, I finally got through to tech support and they said there was some odd security setting on my account that they cleared.  Changed internet providers, now getting the same issue again.  IMPOSSIBLE to get through, and when I did finally get through, she somehow DISCONNECTED ME.  Frustrating.  Hope you have better luck.

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XfinityMarshante

Official Employee

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68 Messages

Hello @user_qs88o5, I hope you are having a great day. I understand you are having issues with your Xfinity email when trying to send an email. I can understand how frustrating that can be when you need to get a message to someone immediately. I do apologize for the inconvenience. When you are having issues sending an email, are you using the Xfinity site or are you using a third-party email client to send your emails? 

 

 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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17 days ago

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user_qs88o5

Visitor

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2 Messages

@XfinityMarshante​ I'm using Thunderbird.  I've had the issue before, it seems the last time I had this problem, I had been flagged as a spammer or similar- but I send very few emails.  The issue is intermittent; I sent an email fine from Thunderbird the other day.

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7 days ago

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XfinityEricB

Official Employee

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2.2K Messages

 

user_qs88o5 When you say changed internet providers, did you mean browsers or moved from Comcast? Do you get any errors when logging into the website before trying to send the email?

 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

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5 days ago

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user_i925al

3 Messages

9 days ago

I've been having the same issue for weeks. Cannot send comcast email most of the time. I often get a message that the SMTP has had too many authentication attempts. I'm using Thunderbird on a PC, Mail app on Iphone 14+. I've reconfigured everything from scratch multiple times on both devices. No Change.

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user_i925al

3 Messages

I can pretty reliably receive emails. Responding to them and creating new emails will not send.

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9 days ago

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XfinityDemitrius

Official Employee

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1.8K Messages

Hey @user_i925al, Thank you for visiting our official Xfinity Forums Community support page. We greatly appreciate you taking the time to share your experience regarding the Xfinity Email service. I would be more than happy to offer my assistance looking into this further for you. 

 

As a first step, are you able to log in to your Xfinity Email through our Xfinity Connect online web portal? If so, can you create a new email and send it to yourself to ensure the email is in the Sent folder as well as the Inbox.

 

If the email is able to be successfully sent an received, would you be able to fully delete your email profile within Thunderbird and create a new profile? We do recommend not editing the profile and completely removing and starting a new profile to ensure no other settings may be causing issues. The port settings can be found by visiting our 'Set up your Xfinity Email address with an email program' support page. 

 

Please give this a try and let us know what you find. We hope to hear from you soon.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Like

Reply

7 days ago

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