[Dovecot] OT Re: Dovecot and Outlook Express "plaintext authentication not allowed..."

[Charles Marcus]

On 2012-04-17 4:41 PM, D Chen <dchenusa at yahoo.com> wrote:
> Per your suggestion, in Outlook Express I changed to use SSL on port
> 993 for IMAP, and port 465 for SMTP, the creation of the new account
> succeeded without error! However, when tried to send to my yahoo mail or
> gmail acct, got the following error: (apparently failed to send!)

Changed subject to OT because this is not relevant to dovecot...

> "The message could not be sent because one of the recipients was rejected by the server.  The
> rejected email address was 'dchenusa at yahoo.com.'  Subject: 'test out to yahoo mail'
> Account:'dchen192.168.20.100'
> Server: 192.168.20.100
> Protocol: SMTP, server response: 554 5.7.1

That is a 'Relay access denied' error (assuming yahoo uses correct error 
codes, which is probably a bad assumption)...

Either Yahoo doesn't support port 465 (try the submission port for your 
yahoo smtp server - 587)... or you have a free account which doesn't 
allow relaying using their servers (so you'd have to use something else 
for sending - what does the Thunderbird client use for sending for that 
account?)...

But as suggested... don't use Outlook Express, use a modern mail client 
(Thunderbird is my preference, but someone else suggested Windows Live 
Mail which does suck much less than Outlook Express)...

-- 

Best regards,

Charles