PubCrawler services failed to connect securely to NCBI on Sep 2nd and needed an upgrade. I used this opportunity to switch to a newer server which required a good bit of adjustment and testing. During this time no PubCrawler updates were generated.
Since Sep 5 the service is back online and working with a few changes:
- HTTPS protocol is now used as default for secure connections
- e-mails are now sent through Trinity College's SMTP server
You might need to adjust your spam filter settings.
p.s.: The main server was put in place in 2002 and has worked well over the last 18 years but was now overdue for an upgrade.