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I am no longer able to send a message that includes an attachment.

  • 4 replies
  • 2 have this problem
  • 19 views
  • Last reply by sfhowes

I_Rufus
I_Rufus
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I am using the current version of Thunderbird. Yesterday I tried to send an email (Comcast account) with three photo attachments, each less that 1.3MB. I received this error: "The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded: 4.1.1 ... temporary failure." (attached) I resized the photos and tried again. Same result. I then tried sending a message with just one photo of the smaller size. Same result. I logged into my Comcast account through their web page and had no problem sending attachments.

Any suggestions? Thanks.

I am using the current version of Thunderbird. Yesterday I tried to send an email (Comcast account) with three photo attachments, each less that 1.3MB. I received this error: "The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded: 4.1.1 ... temporary failure." (attached) I resized the photos and tried again. Same result. I then tried sending a message with just one photo of the smaller size. Same result. I logged into my Comcast account through their web page and had no problem sending attachments. Any suggestions? Thanks.
Attached screenshots

All Replies (4)

user01229325
user01229325
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The message came from your providers server. Have you asked them what is wrong with their SMTP server?

I_Rufus
I_Rufus Question owner
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Thanks for your quick response. Unfortunately when I contacted Comcast, they were the ones who told me to try sending from their website - which worked. So now I will return to them with your suggestion.

user01229325
user01229325
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Sending via webmail and sending via SMTP server are two completely different operations. Sending via webmail means you know your username and password and nothing else.

sfhowes
sfhowes
  • Top 25 Contributor
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It seems to be a longstanding Comcast issue. Are you trying to send to a mailing list or multiple recipients? If so, can you verify that all the addresses are valid?