[GH-ISSUE #992] automatic backup error #789

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opened 2026-02-26 01:31:54 +03:00 by kerem · 2 comments

kerem commented

2026-02-26 01:31:54 +03:00

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Originally created by @Tali76 on GitHub (Oct 29, 2019).
Original GitHub issue: https://github.com/jberkel/sms-backup-plus/issues/992

Hello,

My android version : 7.0NRD90M
My phone model : Xiaomi Redmi Note 4
SMS Backup+ version installed : 1.5.11

I managed to get around the Gmail authorization issue, allowing IMAP in GMAIL, allowing the use of less secure apps, and setting up the server manually in the SMS Bacup + application like this:

Authentication: Simple text
Server address: imap.gmal.com:993
Email address: my Gmail address
Password: my Gmail account password
Security: TLS
Trust all applications: checked

In addition I set the regular automatic backup on 30mn (number of max sms to save on 100), and the planning of incoming messages on 1mn

Regular automatic backup worked well, but the incoming backup did not work often ...
And lately I got the following error messages when opening the log:

Example of an error message:

29-10 16:30 Requested backup (regular)
29-10 16:30 Start backup (REGULAR)
29-10 16:30 Backup in progress (11 SMS, 2 MMs, 0 calls)
29-10 16:30 General error: unable to connect (exception: com.fsck.k9.mail.MessagingException: Unable to connect, underlying = java.net.UnknownHostException: Unable to resolve host "imap.gmail.com": No address associated with hostname).

Message incomprehensible to me sorry ... ????
Would someone have the answer?
Thank you.

Originally created by @Tali76 on GitHub (Oct 29, 2019). Original GitHub issue: https://github.com/jberkel/sms-backup-plus/issues/992 Hello, My android version : 7.0NRD90M My phone model : Xiaomi Redmi Note 4 SMS Backup+ version installed : 1.5.11 I managed to get around the Gmail authorization issue, allowing IMAP in GMAIL, allowing the use of less secure apps, and setting up the server manually in the SMS Bacup + application like this: Authentication: Simple text Server address: imap.gmal.com:993 Email address: my Gmail address Password: my Gmail account password Security: TLS Trust all applications: checked In addition I set the regular automatic backup on 30mn (number of max sms to save on 100), and the planning of incoming messages on 1mn Regular automatic backup worked well, but the incoming backup did not work often ... And lately I got the following error messages when opening the log: Example of an error message: 29-10 16:30 Requested backup (regular) 29-10 16:30 Start backup (REGULAR) 29-10 16:30 Backup in progress (11 SMS, 2 MMs, 0 calls) 29-10 16:30 General error: unable to connect (exception: com.fsck.k9.mail.MessagingException: Unable to connect, underlying = java.net.UnknownHostException: Unable to resolve host "imap.gmail.com": No address associated with hostname). Message incomprehensible to me sorry ... ???? Would someone have the answer? Thank you.

kerem

2026-02-26 01:31:54 +03:00

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kerem commented

2026-02-26 01:31:54 +03:00

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@kurahaupo commented on GitHub (Nov 9, 2019):

The last line of that error message contains the key:

Unable to resolve host "imap.gmail.com"

This indicates a problem that's somewhere between your device and your ISP or phone service provider.

Normally such an error would be transient and will resolve itself, but if you'd like to trouble-shoot, start by checking whether you're connected by WiFi or using mobile data, as that will affect which DNS resolver your phone is connecting to. Try switching from one to the other and see if that helps.

If the problem only occurs when connected to your home WiFi, try rebooting your WiFi router, or try "flush DNS cache" if it has that feature.

@kurahaupo commented on GitHub (Nov 9, 2019): The last line of that error message contains the key: * `Unable to resolve host "imap.gmail.com"` This indicates a problem that's somewhere between your device and your ISP or phone service provider. Normally such an error would be transient and will resolve itself, but if you'd like to trouble-shoot, start by checking whether you're connected by WiFi or using mobile data, as that will affect which DNS resolver your phone is connecting to. Try switching from one to the other and see if that helps. If the problem only occurs when connected to your home WiFi, try rebooting your WiFi router, or try "flush DNS cache" if it has that feature.

kerem commented

2026-02-26 01:31:55 +03:00

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@kurahaupo commented on GitHub (Apr 27, 2020):

no response, closing issue

@kurahaupo commented on GitHub (Apr 27, 2020): no response, closing issue