Turbo07's profile

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22 Messages

Tuesday, December 2nd, 2025 5:34 PM

Could you just temporarily lift the mail size limit for the transition to Yahoo?

I'm checking my mailbox to find messages over 25MB.  I don't know if that's Real Binary MB (1048576) or Marketing MB  (1000000).  And of course the webmail interface has no way to search based on size, so I'm relying on Thunderbird/Outlook to do that.  In some cases they can't agree on how big the attachments are - are you using binary size or MIME-encoded size?

I have a relative handful of messages that shouldn't be there if you were enforcing a 25MB limit before.  Couldn't you just lift it to something like 50MB for the transfer and then knock it back down afterward?  It's a real pain to have to search for and then save these messages elsewhere over an arbitrary limit.

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33K Messages

2 days ago

@Turbo07 

I'm checking my mailbox to find messages over 25MB.  I don't know if that's Real Binary MB (1048576) or Marketing MB  (1000000).  And of course the webmail interface has no way to search based on size, so I'm relying on Thunderbird/Outlook to do that.  In some cases they can't agree on how big the attachments are - are you using binary size or MIME-encoded size?

I have a relative handful of messages that shouldn't be there if you were enforcing a 25MB limit before.  Couldn't you just lift it to something like 50MB for the transfer and then knock it back down afterward?  It's a real pain to have to search for and then save these messages elsewhere over an arbitrary limit.

Unfortunately that's not a possibility.  I believe that Yahoo! Mail also uses the 25MB limit.

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@Again​ Of course.  That would be convenient for customers, afterall.  Doing nothing is convenient for Comcast/XFinity.  So nothing it is.

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@Again​ Can you at least answer _how_ you're counting megabytes?

Are you counting real megabytes (1,048,576 bytes) or marketing megabytes (1,000,000 bytes)?

Are you counting actual attachment sizes or MIME-encoded attachment sizes?

Many of these e-mails are under one limit but over another.  And some of them are Comcast at both ends, which makes me wonder if your software didn't work or you calculated sizes differently.

Official Employee

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Turbo07 thank you so much for stopping by to help with your concerns regarding your email. It looks like @BruceW and @Again already helped with your email size concerns. Please let me know if there is anything else we can help with. 

 

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Gold Problem Solver

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26.9K Messages

22 hours ago

When mail servers contact Comcast.net addresses, one of the status codes the server returns is "250-SIZE 36700160". 

36,700,160 appears to be 35*1024*1024, or 35 * 2^20. So 35 "real" (binary) megabytes. 

When mail servers contact Yahoo.com addresses, one of the status codes the server returns is "250-SIZE 41943040". 

41,943,040 appears to be 40*1024*1024, or 40 * 2^20. So 40 "real" (binary) megabytes, even though as @Again stated and https://help.yahoo.com/kb/SLN5673.html confirms, Yahoo says the limit is 25 megabytes. 

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