I tried to send e-mail from the system to realize fax transmission.
\nHowever, I attempted to send to eFax’s e-mail address (domain part efaxsend.com), but in the
\nqmail mail log<\/p>\n
Deferral: CNAME_lookup_failed_temporarily. _ (# 4.4.3)<\/p>\n
It is recorded as a differer and can not be sent.<\/p>\n
As a cause,<\/p>\n
I can not resolve the destination host in DNS.<\/p>\n
Although it can be considered, it was confirmed that it can be normally dragged with the dig command.
\nThere is another reason.<\/p>\n
Qmail gives an error of DNS response of 512 bytes or more<\/p>\n
It seems to be the cause. At the time I saw efaxsend.com MX records, there were 16 MX records.
\nThe patch has been released.<\/p>\n
Http:\/\/www.ckdhr.com\/ckd\/qmail-103.patch<\/p>\n
You can apply this patch or directly by specifying the destination SMTP server addressed to the given domain in qmail’s smtproutes configuration file as shown below.<\/p>\n
# Vi \/ var \/ qmail \/ control \/ smtproutes
\nrmohan.com: mail.yahoo.com<\/p>\n
However, since the other SMTP server may be changed, it is better to apply patches as well.<\/p>\n","protected":false},"excerpt":{"rendered":"
I tried to send e-mail from the system to realize fax transmission. However, I attempted to send to eFax’s e-mail address (domain part efaxsend.com), but in the qmail mail log<\/p>\n
Deferral: CNAME_lookup_failed_temporarily. _ (# 4.4.3)<\/p>\n
It is recorded as a differer and can not be sent.<\/p>\n
As a cause,<\/p>\n
I can not resolve the destination […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6768"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6768"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6768\/revisions"}],"predecessor-version":[{"id":6769,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6768\/revisions\/6769"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}