sendmail
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
|
sendmail [2010/03/24 23:07] k2patel created |
sendmail [2020/08/10 02:35] (current) |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== Sendmail ====== | ====== Sendmail ====== | ||
| + | |||
| + | ==== How to create .cf file from .mc ==== | ||
| + | It is always best practice to build .cf file from .mc | ||
| + | <code bash> | ||
| + | m4 sendmail.mc > /etc/sendmail.cf | ||
| + | </code> | ||
| + | |||
| + | ==== Rebuild aliases ==== | ||
| + | when you modify /etc/mail/aliases.\\ | ||
| + | Possibly you see following message. \\ | ||
| + | //**alias database /etc/mail/aliases.db out of date**// \\ | ||
| + | |||
| + | Simply run following and will fix it. | ||
| + | |||
| + | <code bash> | ||
| + | newaliases | ||
| + | </code> | ||
| + | OR\\ | ||
| + | run 'make' in /etc/mail to update all databases\\ | ||
| + | OR | ||
| + | <code bash> | ||
| + | sendmail -bi | ||
| + | </code> | ||
| + | |||
| + | ==== Error Code 126 ==== | ||
| + | Following messages you see in log and mail. | ||
| + | * DSN: unknown mailer error 126 | ||
| + | * stat=unknown mailer error 126 | ||
| + | * runscript.sh: Permission denied | ||
| + | * 554 5.3.0 unknown mailer error 126 | ||
| + | |||
| + | It is because script you call to catch email OR execute when received has permission issue. \\ | ||
| + | Simply set permission on that script to "Sendmail Default User" could be 'daemon' or 'mailnull'. \\ | ||
| + | the names i have used those are i came across till now. so chances are there you see something diff. \\ | ||
| + | |||
| + | Whole path need to be executable by that user. | ||
| ==== How to change outbound IP ==== | ==== How to change outbound IP ==== | ||
| Line 11: | Line 47: | ||
| NOTE : change 192.168.1.22 with your IP. | NOTE : change 192.168.1.22 with your IP. | ||
| + | |||
| + | ==== Clear queue ==== | ||
| + | |||
| + | Check if you want to delete all mail. | ||
| + | <code bash> | ||
| + | mailq | ||
| + | OR | ||
| + | sendmail -bp | ||
| + | </code> | ||
| + | |||
| + | Now if you want to delete everything in queue just delete everything inside mqueue folder.\\ | ||
| + | In CentOS it is located at **/var/spool/mqueue/** | ||
| + | <code bash> | ||
| + | rm -rf /var/spool/mqueue/* | ||
| + | </code> | ||
| + | |||
| + | If there is too many files to remove you better use option like xargs with find. | ||
| + | <code bash> | ||
| + | find /var/spool/mqueue -name * -print0 |xargs -0 -r -n100 rm | ||
| + | </code> | ||
sendmail.1269472028.txt.gz ยท Last modified: 2020/08/10 02:29 (external edit)
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
