I'm getting these messages in the exim_mainlog while trying to set up an email account in either Blue Mail or on an iPhone. However, they do not appear when using Outlook or Thunderbird!
SMTP connection from (localhost) [my ip address here]:1493 lost while reading message data (header)
I've found little online about this, the only suggestion was to change the ethernet MTU from 1500 to 9000 via ifconfig, which I tried, and restarted the networking service and verified is set.
It would *seem* that Outlook/Thunderbird are doing something very different when testing outgoing server settings in some way that works, while Blue Mail and iPhones suddenly are having a problem with the commands being exchanged back and forth during the SMTP authentication session. I hadn't tried Blue Mail in a while, and this was prompted when a customer was setting up her iPhone after updating iOS.
I think it is possibly not a coincidence that A.) I haven't tried BlueMail in a while and it's a more modern app, 2.) the iPhone was just updated, 3.) Outlook and Thunderbird are "older".
It certainly seems like whatever Outlook and Thunderbird are expecting from the server is being met, while whatever Blue Mail and iPhones are expecting is not being met, and the clients are terminating the connections.
Suggestions?
SMTP connection from (localhost) [my ip address here]:1493 lost while reading message data (header)
I've found little online about this, the only suggestion was to change the ethernet MTU from 1500 to 9000 via ifconfig, which I tried, and restarted the networking service and verified is set.
It would *seem* that Outlook/Thunderbird are doing something very different when testing outgoing server settings in some way that works, while Blue Mail and iPhones suddenly are having a problem with the commands being exchanged back and forth during the SMTP authentication session. I hadn't tried Blue Mail in a while, and this was prompted when a customer was setting up her iPhone after updating iOS.
I think it is possibly not a coincidence that A.) I haven't tried BlueMail in a while and it's a more modern app, 2.) the iPhone was just updated, 3.) Outlook and Thunderbird are "older".
It certainly seems like whatever Outlook and Thunderbird are expecting from the server is being met, while whatever Blue Mail and iPhones are expecting is not being met, and the clients are terminating the connections.
Suggestions?
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