Can't send via Yahoo

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Strange one. I have a 1.1.1 jailbroken/activated etc handset and all is well. Except I can't reply to or send emails via my Yahoo account. I can collect and read no problem but every time I try and send I get

Cannot Send Mail
The connection to the outgoing server "(null)" failed.

Any ideas? Its driving me nuts!

Thanks

 

[chr1s60]

I don't have a jailbroken phone or anything like that, but I do have a similar type of problem. On my Yahoo! email I can get email no problem, but when I try to send one it makes the sound saying it sends, but in reality it never does send. It does this at least once a month and I don't know why.

 

[Juvenile]

I don't have a jailbroken phone or anything like that, but I do have a similar type of problem. On my Yahoo! email I can get email no problem, but when I try to send one it makes the sound saying it sends, but in reality it never does send. It does this at least once a month and I don't know why.

Mine did this too. I deleted the mail account and set it back up. Have not had a problem since.

 

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Update:

Thanks Juvenile. That fixed the issue.