Consider the possibility that this could be a spamdyke option/issue. I
mention this because with my centos5 toaster I had to manually install
spamdyke but it installed automatically with my recent centos7 toaster.
Also, the spamdyke version has upgraded from 4.x to 5.x which was a
fairly significant change.

You could test this easily by commenting out the spamdyke line in
/var/qmail/supervise/smtpd and then restarting qmail.  If that solves
the problem, then spamdyke is the culprit and you should then scour the
spamdyke docs for the appropriate setting to change.


On 9/11/2018 6:51 AM, Jeff Koch wrote:
> Hi Eric:
> This was an old Bill's Toaster and for reasons I can't remember (going
> back to 1999) user's couldn't put '@' asteriks in their usernames so we
> had them use percent signs which Bill's toaster accepted.
> Jeff
> On 9/11/2018 10:23 AM, Eric Broch wrote:
>> Hi Jeff,
>> How old was the toaster? What metamorphosis of qmail were you running.
>> In all the maintenance I've done nothing has been modified to the
>> qmail packages concerning the % character.
>> On 9/11/2018 7:54 AM, Jeff Koch wrote:
>>> Hi:
>>> We just upgraded a mailserver to the new qmail toaster and ran into a
>>> problem. The old mailserver allowed usernames with percent signs such
>>> as The new toaster rejects that form of username. Is
>>> there any quick fix that would allow the percent sign to be used?
>>> Otherwise we have hundreds of customers that won't be able to connect
>>> to their email accounts.
>>> Regards, Jeff
>> -- 
>> Eric Broch
>> White Horse Technical Consulting (WHTC)

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