Seams like the log is full and cannot restart service:
Client just updated from 17.1.4 to 17.5.11. Yes, too long since any updating. Any suggestions?
From version 17.5 awarrenmta has been replaced to smtpdservice smtpd:restart -ds nosync
Please refer to the article - https://community.sophos.com/kb/en-us/132211
KeyurCommunity Support Engineer | Sophos Support Sophos Support Videos | Knowledge Base | @SophosSupport | Sign up for SMS Alerts | If a post solves your question use the 'This helped me' link
Thanks Keyur, will apply tomorrow and let you know if all went well.