Any ideas as to why I would get this message after I start Listserv and send an email to it? Below the error message is a copy of my aliases file. Thanks ----- The following addresses had permanent fatal errors ----- <[log in to unmask]> ----- Transcript of session follows ----- 553 datacom-equipment.com. config error: mail loops back to me (MX problem?) 554 <[log in to unmask]>... Local configuration error ---aliases file--- # General redirections for pseudo accounts. bin: root daemon: root games: root ingres: root nobody: /dev/null system: root toor: root uucp: root # Well-known aliases. manager: root dumper: root operator: root # trap decode to catch security attacks decode: root # Person who should get root's mail root: admin sys: admin, [log in to unmask] # -- Aliases for LISTSERV server listserv: "|/usr/local/bin/lsv_amin -t listserv" owner-listserv: "|/usr/local/bin/lsv_amin -t owner-listserv" # -- Aliases for 'datacom-equipment' mailing list datacom-equipment: "|/usr/local/bin/lsv_amin -t datacom-equipment" owner-datacom-equipment: "|/usr/local/bin/lsv_amin -t owner-datacom-equipment" datacom-equipment-request: "|/usr/local/bin/lsv_amin -t datacom-equipment-request" datacom-equipment-search-request: "|/usr/local/bin/lsv_amin -t datacom-equipment-search-re quest" datacom-equipment-server: "|/usr/local/bin/lsv_amin -t datacom-equipment-server" datacom-equipment-subscribe-request: "|/usr/local/bin/lsv_amin -t datacom-equipment-subscr ibe-request" datacom-equipment-signoff-request: "|/usr/local/bin/lsv_amin -t datacom-equipment-signoff- request" datacom-equipment-unsubscribe-request: "|/usr/local/bin/lsv_amin -t datacom-equipment-unsu bscribe-request"