mail smtp authentication bug: first character of user missing

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Level 1

9 points

mail smtp authentication bug: first character of user missing

Mail has always been very slow sending emails, we are talking several MINUTES !!

And no, i'm not using Gmail, I'm using my own email server, a windows box running HMailserver which is sitting next to my Mac, on the same LAN, no firewall between them.

Furthermore from time to time Mail is prompting me to re-enter my smtp user password.

So I looked at my mail servers logs and found out that sometimes the SMTP username sent for authentification is missing its first letter : hil@mydomain.com instead of phil@mydomain.com

I have checked the content of my keychain for any old username with a typo that could have been left over, but this is not the case, my mac does not contain a user hil@mydomain.com

I have not ruled out that the bug could be on the side of hmailserver, but if you have a similar problem i'd like to hear about it.

OS X Mavericks (10.9.2)

Posted on Apr 16, 2014 10:31 AM

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Answer 1

Best reply

michaelfromhoejslev

Level 1

10 points

Oct 8, 2016 6:45 AM in response to zantafio

I am witnessing the same problem with hMailserver and the applemail client.

I would seem that the way apple sends imap requests to the server may have

been altered in Mavericks (10.9.4).

If wrong login info is sent to the server (missing letter as in this case)

4 times ( or how autoban is configured )

the server will ban the IP for a pre defined period

If you are sending from a static IP you can "whitelist" the IP on your server

/Settings/Advanced/IP Ranges

Which should help as applemail apparently only sends the wrong login request intermittently.

It would be my guess that the issue will need to be addressed by hMail update.

- hope you found this helpful

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Answer 2

zantafio Author

Level 1

9 points

Oct 8, 2016 6:46 AM in response to michaelfromhoejslev

this is old ( my server physically died, so I moved from hmailserver to OS X server) but I do remember that the problem was a misconfiguration in Hmailserver regarding SSL. If I remember correctly it was because I used the wrong port number.

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