我正在使用rails 4.2.10和ruby 2.4.3。当我试图启动“邮件程序”队列时，该过程看起来像正在运行，但它没有处理任何工作。同样在sidekiq-web中，作业在忙碌标签中显示1分钟然后消失。
请帮忙。
以下是日志
2018-01-19T09:42:07.756Z 26969 TID-1norfk ActionMailer::DeliveryJob JID-a078455af3409f04196e5f32 INFO: start
2018-01-19T09:42:07.760Z 26969 TID-1nopkc ActionMailer::DeliveryJob JID-9d9e50ba76cabdadfa07bdb2 INFO: start
2018-01-19T09:42:07.771Z 26969 TID-1nopqg ActionMailer::DeliveryJob JID-be7bc405d5c3f6ce22065ea8 INFO: start
2018-01-19T09:42:07.772Z 26969 TID-1nos18 ActionMailer::DeliveryJob JID-ba8df1375226e6e26df642ac INFO: start
2018-01-19T09:42:07.772Z 26969 TID-1noqr4 ActionMailer::DeliveryJob JID-1515c7c6ce409038dc8c92da INFO: start
2018-01-19T09:42:07.773Z 26969 TID-1nor3c ActionMailer::DeliveryJob JID-97fd162d73cf434c086d8a10 INFO: start
2018-01-19T09:42:07.773Z 26969 TID-1noobw ActionMailer::DeliveryJob JID-256d7664bbaaaaf83d99dc72 INFO: start
2018-01-19T09:42:07.774Z 26969 TID-1nop84 ActionMailer::DeliveryJob JID-cb086b61e1c9455dffa17a55 INFO: start
2018-01-19T09:42:07.774Z 26969 TID-1irs1k ActionMailer::DeliveryJob JID-0864b36defdc9434eb1b2065 INFO: start
2018-01-19T09:42:07.774Z 26969 TID-1noqx8 ActionMailer::DeliveryJob JID-dc4690658e540cfb5bb93cc6 INFO: start
2018-01-19T09:42:07.775Z 26969 TID-1noq8s ActionMailer::DeliveryJob JID-e28b3d3dbe0b257bc5febc5f INFO: start
2018-01-19T09:42:07.775Z 26969 TID-1noops ActionMailer::DeliveryJob JID-ef32300609c8a556718aa2aa INFO: start
2018-01-19T09:42:07.775Z 26969 TID-1nope8 ActionMailer::DeliveryJob JID-6cc59784bd661bd76dee652b INFO: start
2018-01-19T09:42:07.775Z 26969 TID-1nor9g ActionMailer::DeliveryJob JID-969d4e43e0eb4d6e12dad4df INFO: start
2018-01-19T09:42:07.776Z 26969 TID-1nooi0 ActionMailer::DeliveryJob JID-a35967d7d4ef58a5c0fc365c INFO: start
2018-01-19T09:42:07.776Z 26969 TID-1noojo ActionMailer::DeliveryJob JID-19e72b442b245fb6a2cb0bc0 INFO: start
2018-01-19T09:42:07.776Z 26969 TID-1norog ActionMailer::DeliveryJob JID-1235978e66ea985794c131b1 INFO: start
2018-01-19T09:42:07.777Z 26969 TID-1noq2o ActionMailer::DeliveryJob JID-d9d428705a048cbbd60f5603 INFO: start
2018-01-19T09:42:07.777Z 26969 TID-1nopwk ActionMailer::DeliveryJob JID-25753f166c2fe7fad6355eff INFO: start
2018-01-19T09:42:07.777Z 26969 TID-1noo5s ActionMailer::DeliveryJob JID-e76c96e0c756f30b712c75c0 INFO: start
2018-01-19T09:42:07.779Z 26969 TID-1noql0 ActionMailer::DeliveryJob JID-fcd6f8cc86a5b7088a2253c0 INFO: start
2018-01-19T09:42:07.779Z 26969 TID-1nop20 ActionMailer::DeliveryJob JID-ccf7c458f22b4c64c248e79e INFO: start
2018-01-19T09:42:07.779Z 26969 TID-1noqew ActionMailer::DeliveryJob JID-f2b62f11d13a5068b8c3b57b INFO: start
2018-01-19T09:42:07.780Z 26969 TID-1norv4 ActionMailer::DeliveryJob JID-1e3b86e34861567e64ef07d2 INFO: start
2018-01-19T09:42:07.780Z 26969 TID-1noovw ActionMailer::DeliveryJob JID-f572ef0da93a2ced8488ddff INFO: start