If you send an email from Postfix to your hotmail.com account, the email will fail.
When I checked the log, I found the following log.
What can be considered as the cause?
Also, how do I set it up to solve this problem?
Thank you for your advice.
May 10 20:40:18 localhost postfix/pickup [28927]:E8C323940359:uid=48 from=<[email protected]>
May 10 20:40:18 localhost postfix/cleanup [30001]:E8C323940359:message-id=<[email protected]>?
May 10 20:40:19 localhost postfix/qmgr [23865]:E8C323940359:from=<[email protected]>,size=1140,nrcpt=1 (queue active)
May 10 20:40:49 localhost postfix/smtp [30003]: connect to mx1.hotmail.com [65.55.92.152]: 25: Connection timed out
May 10 20:40:49 localhostpostfix/smtp[30003]:E8C323940359:to=<[email protected]>,relay=mx3.hotmail.com[207.46.8.199]:25,delay=31,delays=0.15/0.01/30/0.14,dsn=5.0.0,status=bound(mx3.hotmail.com.199diran)[207:46:55]
May 10 20:40:49 localhost postfix/smtp [30003]: E8C323940359: lost connection with mx3.hotmail.com [207.46.8.199] while sending RCPT TO
May 10 20:40:49 localhost postfix/cleanup [30001]:A2E39394035C:message-id=<[email protected]>
May 10 20:40:49 localhost postfix/bounce [30012]:E8C323940359:sender non-delivery notification:A2E39394035C
May 10 20:40:49 localhostpostfix/qmgr [23865]:A2E39394035C:from=<>,size=2973,nrcpt=1 (queue active)
May 10 20:40:49 localhost postfix/qmgr [23865]:E8C323940359:removed
M
Read and understand what's going on
1. Could not connect to mx1.hotmail.com [65.55.92.152]:25
< Connection timed out and waiting for connection is taking a long time
2. The transmission from TO is 554 Transaction failed and processing fails
< in reply to MAIL FROM command failed because there was no response from FROM
3. Lost connection to send to mx3.hotmail.com [207.46.8.199]
"lost connection with mx3.hotmail.com [207.46.8.199] while sending RCPT TO"
おそらく Probably lost connection due to an error
Talk about possibilities
1. Connection refused due to email account authentication failure (Is FROM suspicious?)
2. Attachments are not accepted by the receiving server
3. The destination server is down
4. Relay is not successful when sending mail (main.cf settings may be suspicious)
5. The server is refusing to connect to the outside
We are in the same domain for transmission and reception, so if FROM cannot be connected, TO cannot be connected either...
There seems to be only one side, so there is a high possibility that the account will fail to authenticate...
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