SMTP server blocking access
If I try to send mail using an ISP other than my main provider (bellaliant), SMTP is blocked.
Additional System Details
- User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
does you providers modem/router block those ports?
I suspect the SMTP server recognizes "foreign" ip address. Worked around by using google smtp server.