I use K-9 on two accounts from a mail server in a domain I own hosted by FatCow.
I changed the password on one of those accounts. K-9 can’t connect and returns either
K-9 is unable to parse TLS packet header if I use the same ports used for the other account,
authentication failed, or
3)Username or password incorrect. (Command:sensitive; response: #2# [NO,[AUTHETICATIONFAILED], Authentication failed.])
The username worked before the password change and wasn’t altered in this process. The password is correct, it works on my desktop client and using Roundcube Webmail.
The account I didn’t change connects as it should, using ports 993 and 465, but I didn’t change that password.
The last time I changed a password, I had to try three or four ports before K-9 connected, and I ended up using port 143.
What are you trying to accomplish?
send and receive email after password change
What have you tried so far?
Verified password, verified ports, compared to a second account on the same server, tried the same ports as used on the second account.
What K-9 Mail version are you using? 6.400
What Android version and device are you using?
Samsung S-21+ Android version 13.
I have the log but it’s large, I can copy and paste it here if it will help.
Thanks for replying, I appreciate you taking the time, Yes, I tried every variation, then I nuked and recreated both accounts, and on the second try, it worked. I have no idea why, but after 40 years screwing around with computers, I know when I’m beat.
I got hit by this problem. After I changed the password once, sending email broke with failed authentication. I then reset the password a second time and now received and sending are both broken (failed authentication). I’m using version 6.400. I’m using OnePlus 6 phone/Android 11.
I have other email accounts on the same phone to the same server and they work fine. I tried deleting and recreating the account in K-9 but hit the same problem. Log is here: k9 email log - Pastebin.com