[BlueOnyx:05519] Re: Sendmail stops relaying email to valid local account 'user.name at domain.com' - no such user here!

[Chris Gebhardt - VIRTBIZ Internet]

Jeff Jones wrote:
> Very strange problem today - typical Monday - what is it with mondays?
> 
> A user has a mailbox *user.name at domain.com 
> <mailto:user.name at domain.com>* - all is well. Nothing is changed on the 
> mail server.
> 
> Today I get an email from her google mail account, telling me that no 
> email is getting through to her account where the email address is 
> *user.name at domain.com <mailto:user.name at domain.com>*. Hover - weirdly - 
> email sent to an alias *user at domain.com <mailto:user at domain.com>* IS 
> getting through.
> 
> The next thing I do is try to send her an email - and immediately, I get 
> a bounce back - the error back is - '/no such user here'/!?
> 
> I can log in to her account via the webmail - no problems. 
> I can send an email from her account to me - no problem.
> But I can not send an email to her, using her username, because sendmail 
> can't see this for some reason.
> 
> To resolve the issue I had to add 'user.name' in as an alias - even 
> though this wasn't needed before.
> 
> I am concerned this might be an early sign of some horrible sendmail 
> nasty - any one seen this issue before?
> 
> Any ideas?
> 

What does the maillog have to say?


-- 
Chris Gebhardt
VIRTBIZ Internet Services
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