[Davmail-users] 2 minute delay when sending mail after network change

[Dan C. <jd...@uw...>]

If I send an email message through davmail, then switch wifi networks,
and then try to send a second message, there is a delay of two minutes.
I have included a debug log below, from the start of the second
connection until just after the 2 minute delay.  (The last two
timestamps differ by 2 minutes.)  I've used davmail for over a year, but
this only started happening recently.  It's possible it started when I
upgraded my system from Ubuntu 21.10 to 22.04, which upgraded davmail
from 5.5.1.3299-5 to 6.0.1.3390-1.  I see that there were O365 changes
there, so maybe they are related?

I have also included my .davmail.properties (minus the refresh token).

Any advice?

Thanks,

Dan

2022-07-28 16:04:39,795 DEBUG [davmail.smtp.SmtpServer] davmail  - Connection from /127.0.0.1 on port 1025
2022-07-28 16:04:39,795 INFO  [davmail.smtp.SmtpServer] davmail.connection  - CONNECT - 127.0.0.1:53760 
2022-07-28 16:04:39,873 DEBUG [SmtpConnection-53760] davmail.http.DavGatewaySSLSocketFactory  - createSocket outlook.office365.com 443
2022-07-28 16:04:40,207 DEBUG [SmtpConnection-53760] davmail.exchange.ExchangeSession  - Test configuration status: 401
2022-07-28 16:04:40,208 DEBUG [SmtpConnection-53760] davmail  - > 220 DavMail 6.0.1-trunk SMTP ready at Thu Jul 28 16:04:40 EDT 2022
2022-07-28 16:04:40,208 DEBUG [SmtpConnection-53760] davmail  - < EHLO snowy
2022-07-28 16:04:40,208 DEBUG [SmtpConnection-53760] davmail  - > 250-snowy
2022-07-28 16:04:40,208 DEBUG [SmtpConnection-53760] davmail  - > 250-AUTH LOGIN PLAIN
2022-07-28 16:04:40,209 DEBUG [SmtpConnection-53760] davmail  - > 250-8BITMIME
2022-07-28 16:04:40,209 DEBUG [SmtpConnection-53760] davmail  - > 250 Hello
2022-07-28 16:04:40,209 DEBUG [SmtpConnection-53760] davmail  - < AUTH PLAIN ********
2022-07-28 16:04:40,209 DEBUG [SmtpConnection-53760] davmail.exchange.ExchangeSession  - Got session davmail.exchange.ews.EwsExchangeSession@50e0b9aa from cache
2022-07-28 16:06:40,234 DEBUG [SmtpConnection-53760] davmail.exchange.ExchangeSession  - Session davmail.exchange.ews.EwsExchangeSession@50e0b9aa for user jd...@uw... expired


davmail.ssl.keystoreType=
davmail.ssl.keystorePass=
davmail.proxyPassword=
davmail.oauth.tenantId=
davmail.oauth.clientId=
davmail.smtpPort=1025
davmail.enableKerberos=false
davmail.folderSizeLimit=
davmail.forceActiveSyncUpdate=false
davmail.imapAutoExpunge=false
davmail.useSystemProxies=false
davmail.proxyUser=
davmail.caldavEditNotifications=false
davmail.ssl.nosecuresmtp=false
davmail.caldavPastDelay=0
davmail.ssl.keyPass=
log4j.logger.httpclient.wire=WARN
davmail.noProxyFor=
davmail.server=true
log4j.logger.org.apache.commons.httpclient=WARN
davmail.popMarkReadOnRetr=false
davmail.ssl.nosecureimap=false
davmail.disableTrayActivitySwitch=false
davmail.caldavAutoSchedule=true
davmail.enableProxy=false
davmail.proxyPort=
davmail.logFileSize=10MB
davmail.mode=O365Manual
davmail.smtpSaveInSent=false
davmail.bindAddress=
davmail.ssl.nosecurepop=false
davmail.ssl.pkcs11Library=
log4j.rootLogger=WARN
davmail.ssl.keystoreFile=
log4j.logger.davmail=DEBUG
#log4j.logger.davmail=INFO
davmail.ssl.clientKeystoreType=
davmail.clientSoTimeout=
davmail.ssl.pkcs11Config=
davmail.imapPort=
davmail.ssl.clientKeystorePass=
davmail.url=https://outlook.office365.com/EWS/Exchange.asmx
davmail.sentKeepDelay=0
davmail.ssl.nosecureldap=false
davmail.imapAlwaysApproxMsgSize=false
davmail.ssl.nosecurecaldav=false
davmail.popPort=
davmail.defaultDomain=
davmail.showStartupBanner=false
davmail.proxyHost=
davmail.oauth.persistToken=true
davmail.ldapPort=
davmail.server.certificate.hash=
log4j.logger.org.apache.http.wire=WARN
davmail.disableGuiNotifications=false
davmail.imapIdleDelay=
davmail.allowRemote=false
davmail.disableUpdateCheck=false
log4j.logger.org.apache.http=WARN
davmail.caldavPort=
davmail.enableKeepAlive=true
davmail.ssl.clientKeystoreFile=
davmail.logFilePath=/scratch/davmail.log
davmail.carddavReadPhoto=true
davmail.keepDelay=30
davmail.oauth.redirectUri=
davmail.caldavAlarmSound=