> On 28 Nov 2020, at 06:35, John Fawcett <j...@voipsupport.it> wrote:
>
> On 28/11/2020 11:30, Juerg Reimann wrote:
>> Dear list members,
>>
>> Interesting phenomenon on a newly setup system:
>>
>> 2020-11-28T11:15:48+01:00 localhost postfix/lmtp[98782]: [ID 197553
>> mail.info] DDB5E8456: to=<u...@domain.tld>,
>> relay=my.host.tld[private/dovecot-lmtp], delay=0.04,
>> delays=0.02/0/0.01/0.01, dsn=5.1.1, status=bounced (host
>> my.host.tld[private/dovecot-lmtp] said: 550 5.1.1 <u...@domain.tld> User
>> doesn't exist: u...@domain.tld (in reply to RCPT TO command))
>> 2020-11-28T11:16:01+01:00 localhost postfix/lmtp[98782]: [ID 197553
>> mail.info] BF1678458: to=<u...@domain.tld>, relay=
>> my.host.tld[private/dovecot-lmtp], delay=0.26, delays=0.25/0/0/0.01,
>> dsn=5.1.1, status=bounced (host my.host.tld[private/dovecot-lmtp] said: 550
>> 5.1.1 <u...@domain.tld> User doesn't exist: u...@domain.tld (in reply to
>> RCPT TO command))
>> 2020-11-28T11:26:37+01:00 localhost postfix/lmtp[99560]: [ID 197553
>> mail.info] BA35E88DC: to=<u...@domain.tld>,
>> relay=my.host.tld[private/dovecot-lmtp], delay=0.16, delays=0.08/0/0/0.08,
>> dsn=2.0.0, status=sent (250 2.0.0 <u...@domain.tld> YIesL90lwl+2hAEA0J78UA
>> Saved)
>>
>> How can I lowercase the complete email address in postfix before delivery?
>> It happens like this in my case:
>>
>> virtual_transport = lmtp:unix:private/dovecot-lmtp
>>
>> Thanks,
>> Juerg
>>
> Juerg
>
> There is no configuration parameter to lowercase email addresses in the
> postfix lmtp client. You should be able to configure dovecot to accept
> case insensitive email addresses. It should do that by default in recent
> versions. I believe the parameter to look into is auth_username_format.
Postfix folds usernames to lowercase and this cannot be changed *unless this
has changed in the also couple of years?). Are you saying that LMTP in postfix
behaves differently than local(8)?
Postfix lookups are not case sensitive, so USER will match user.
--
Strange things are afoot at the Circle K
