[MlMt] return code 554 (expected 250)

[Paula R. T. Coelho]

very weird problem...

in the last 35 hours or so every time i try to send emails *from* two 
specific accounts (out of 4 in total), i get the following message:

Unexpected return code 554 (expected 250):
“5.7.1 <164.Red-83-61-103.dynamicIP.rima-tde.net[83.61.103.164]>: 
Client host rejected: Access denied”.

at first i thought the problem was at the smtp server (the two accounts 
use the same smtp server but different login). but after so many hours, 
i suspected of it and tried to send email from the same problematic 
account via ipad and i did manage! mail.app has the same problem as 
mailmate though, so it is a problem related to my laptop.

i swear the problem started out of the blue, i haven't changed 
anything... (that i can remember of).

any thoughts? i'm lost...

paula
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